JP2004296068A - Optical disk drive control program, optical disk control system, host computer, and optical disk drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk drive control program, an optical disk drive control system, a host computer, and an optical disk drive that can write data on optical disks using optimal writing setup values. <P>SOLUTION: The host computer H realizes a recording quality test function to make the optical disk drive S write a plurality of data on an optical disk W, while changing the writing setup, such as the strategy and the laser power for each data by transmitting commands to an optical disk drive D by using a command transmitting function 24, to measure the recording quality information, such as jitters and error rates on each of a plurality of data, and to transmit the recording quality information to the host computer H. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an optical disk device control program read by a host computer connectable to an optical disk device that writes data to an optical disk, an optical disk control system using the optical disk device control program, a host computer reading the optical disk device control program, and a host The present invention relates to an optical disk device that can be connected to a computer and writes data on an optical disk.

  In recent years, writable optical disks such as CD-R, RW and DVD + R, RW have become widespread, and many manufacturers around the world have manufactured writable optical disks. While this allows consumers to benefit from the lower price of optical disks, optical disk devices that write data to optical disks require a variety of optical disks with different characteristics depending on the optical disk manufacturer and product type. In addition, it is required that data can be written with high quality.

  2. Description of the Related Art Conventionally, an optical disk to which data can be written has been devised such that disk identification information indicating the type of the optical disk, a write setting value for writing data to the optical disk, and the like are recorded in advance.

  For example, in the case of a CD-R, disc identification information such as the name of the manufacturer of the CD-R, the writable double speed, and the type of dye used is recorded on the inner side of the user data area. Have been. Therefore, in a conventional optical disk device (CD-R device), a write setting value such as a strategy at the time of writing is stored in advance in a ROM or the like in the optical disk device for each generally-used disk identification information of each CD-R. By changing the write setting value according to the disc identification information read from the CD-R and storing the data, the data can be written with the optimum write setting value for various CD-Rs.

  In the ADIP of the DVD + R, an optimal strategy for writing data to the DVD + R is recorded. Therefore, the conventional optical disk device (DVD + R device) writes data to DVD + R with the optimal strategy read from ADIP.

  However, the quality of an optical disc may vary from product to product, even for the same type of product. Therefore, the type of optical disc is specified by disc identification information, or writing is performed using a strategy recorded on the optical disc. However, the write set value and the strategy may not always be optimal for the individual optical disc to which data is written.

In view of this, a recording / reproducing apparatus and a recording / reproducing method for writing data with an optimum write set value (write output) for each optical disc have been proposed in Patent Document 1.
Japanese Patent Application Laid-Open No. H11-163873 discloses that when performing trial writing of data in OPC, after writing a plurality of data with different write outputs, the jitter value of the plurality of written data is measured and optimized for an individual optical disc. It describes an optical disc device and an optical disc writing method that require a high write output.
According to this apparatus or method, writing can be performed on each optical disk with an optimum writing output.
JP 2002-123943 A

However, in a conventional optical disk device in which a write setting value for each disk identification information is stored in advance in a storage device such as a ROM, a developer of the optical disk device requires many manufacturers all over the world to release one after another. It is necessary to measure the optimum write setting value for each type of optical disk and incorporate it into the storage means of the optical disk device, and it takes a lot of time to find the optimum write setting value for each type of optical disk. There are issues.
When a new type of optical disk is released after the release of the optical disk device, it is necessary to write a write setting value corresponding to the optical disk into the storage means of the optical disk device. Conventionally, for this purpose, it is necessary to rewrite the storage means (flash ROM or the like) of the optical disk device (so-called firmware update), which imposes a heavy burden on the user of the optical disk device and the optical disk device maker, Even if a new type of optical disk is released, a non-optimal write setting value for the optical disk until the disk device manufacturer seeks the optimum write setting value for the optical disk and provides support such as the release of upgraded firmware. There is a problem that can be used only in the. In addition, there is a problem that a manufacturer of an optical disk apparatus has a difficulty in grasping an optical disk released from any manufacturer in the world every day.

  Further, in a writing method for performing writing according to a strategy recorded in advance on an ADIP or the like of an optical disk, the optical disk device can recognize a strategy optimized for each optical disk, but a laser driver mounted on the optical disk device Since the writing mechanism such as is different for each optical disk device, actually, even if the above-mentioned optimal strategy is set, actual laser irradiation slightly differs for each optical disk device. Therefore, there is a problem that the strategy recorded on the optical disk is not always the optimal strategy for the optical disk for each optical disk device.

In addition, the method of measuring the jitter value of the written data at the time of executing the OPC and obtaining the optimum write output can obtain the optimum write output individually for each optical disc. However, the method for the developer to find the optimum write setting value for each optical disk is too complicated to reproduce with the firmware of the optical disk device, so it can actually be executed even with the firmware of the optical disk device. To this extent, there is no choice but to employ a very simplified algorithm, and there is a problem that it is difficult to obtain an accurate optimum write set value.
Further, when a writing trouble occurs, for example, when writing fails with the optimum writing output obtained by the optical disk device, the writing output at that time cannot be grasped by a user or a maker. There is a problem that it is difficult to clarify the cause or take measures to prevent failure.
In addition, when the algorithm for obtaining the optimum write output is improved, it is necessary to rewrite the storage means of the optical disk device (for example, firmware on a flash ROM), which places a heavy burden on the user or manufacturer of the optical disk device. is there.

  Furthermore, in recent years, with the price reduction of optical disks, optical disks of low quality are increasing. The conventional optical disk device has a problem that a write failure rate is high for a low-quality optical disk. For example, if a set of ten optical discs is purchased, there may be a case where data writing fails on about eight optical discs.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to enable data to be written to an optical disk with a more optimal write set value, and to optimize an optical disk at the time of development of an optical disk device. It can reduce the workload of finding the write setting value, and when used by an optical disk device user, can write with the optimum write setting value for a new type of optical disk without waiting for the support of the optical disk device manufacturer. The manufacturer of an optical disk device can grasp information such as the type of an optical disk used by a user and a write setting value when writing has failed, or easily change a method (algorithm) for obtaining an optimum write setting value. Optical disk device control program and optical disk device control system To provide a host computer and an optical disc apparatus.

An optical disk device control program according to the present invention has the following configuration in order to solve the above problems. That is, an optical disk device control that allows a host computer to be connected to an optical disk device that writes data on an optical disk and transmits various commands to the optical disk device to control the optical disk device. By transmitting a command to the optical disk device by the command transmission function, the program transmits a plurality of data to the optical disk, and writes a write set value such as a strategy or a laser power set value for each data. The host computer realizes a recording quality test function of writing the data differently, measuring recording quality information such as a jitter value and an error rate of each of the plurality of data, and transmitting the recording quality information to the host computer. To make And it features.
According to this, the recording quality information at the time of writing data to the optical disk with various write setting values can be grasped by the host computer, and the writing characteristics of the optical disk and the write setting values suitable for writing can be stored, managed, and referenced. And so on. Also, if this optical disk device control program is used during the development of the optical disk device, the recording quality at each write setting can be easily grasped, and the work load of the developer for finding the optimum write setting value for each type of optical disk can be reduced. Can be.

Further, the command transmission function includes: a write setting command for setting the write setting value when writing data to an optical disk to the optical disk device to a specified value; and a write setting command for the optical disk device to the optical disk. A write command for writing data with the set write setting value; and a recording quality measurement command for causing the optical disc device to measure the recording quality information of the data written on the optical disc and to transmit the recording quality information to the host computer. Is provided so as to be able to be transmitted to the optical disk device, and the recording quality test function writes the plurality of data on the optical disk to the optical disk device with the write setting command and the write command, for each data. Set values to be different And causing the optical disc device to measure the recording quality information of each of the plurality of data written on the optical disc with the recording quality measurement command, and to transmit the recording quality information to the host computer. Features.
According to this, since the host computer can execute the algorithm for measuring the recording quality, it is possible to execute a more complicated writing algorithm as compared with the case where the firmware of the optical disk device executes the algorithm, and it is possible to execute the algorithm more accurately and more accurately. An optimal write setting value can be obtained.

Further, the host computer realizes a macro analysis execution function of analyzing and executing a macro program rewritably stored in a storage unit of the host computer, and the recording quality test function is transmitted to the optical disk device. A macro program including a command statement is analyzed and executed by the macro analysis execution function, so that the macro program is realized in the host computer.
According to this, the host computer can grasp the recording quality of the written data by performing various measurements of the recording quality by replacing or changing the macro program. Further, compared with the case where the algorithm of the recording quality measurement is changed by updating the firmware as in the related art, the algorithm of the recording quality measurement can be easily changed and updated. Therefore, if this optical disk device control program is used by general users, it is possible to easily update the macro program that realizes the optimum recording quality measurement algorithm created by the manufacturer, and prepare multiple macro programs when developing the optical disk device. As a result, various recording quality tests can be performed efficiently, and the work load of the developer for finding the optimum write setting value can be reduced.

A setting value calculation function for obtaining an optimum write setting value for optimizing recording quality on the optical disc based on the recording quality information received by the host computer from the optical disc apparatus by the recording quality test function; It is characterized by being realized by a host computer.
According to this, since the host computer executes an algorithm for obtaining the optimum write setting value, it is possible to obtain a more complicated and optimum write setting value as compared with the case where the firmware of the optical disk device executes the algorithm. Can be executed, and a more accurate and optimum write set value can be obtained.

Further, the host computer realizes a macro analysis execution function of analyzing and executing a macro program rewritably stored in a storage unit of the host computer, and the set value calculation function includes a macro program that executes the macro analysis. It is characterized in that it is realized in the host computer by being analyzed and executed by the execution function.
According to this, by replacing or changing the macro program, it is possible to execute various algorithms for finding the optimum write setting value, and to change the algorithm for finding the optimum write setting value by updating the firmware as in the past. The algorithm can be changed and updated more easily than in the case where the algorithm is used. Therefore, if this optical disk device control program is used by a general user, the macro program that realizes the algorithm for finding the optimum write setting value created by the manufacturer can be easily updated. Can be efficiently executed to execute various algorithms for obtaining optimum write setting values, and the work load of a developer for obtaining optimum write setting values can be reduced.

In addition, by transmitting a command to the optical disk device by the command transmission function, the optimal write setting determined by the set value calculation function as a write setting value when writing data to the optical disk in the optical disk device. The host computer may realize an optimum setting function for setting a value.
According to this, it is possible to cause the optical disk device to write data to the optical disk with the optimum write setting value.

In addition, the host computer and / or the optimum write setting value of the optical disc determined by the setting value calculation function are used for each disc identification information previously recorded on each optical disc to identify the type of the optical disc. The present invention is characterized in that the host computer realizes an optimum setting value storage function to be stored in a storage unit of the optical disk device.
According to this, the optimum write set value once obtained can be stored for each type of optical disk, so that it is not necessary to perform a recording quality test on optical disks of the same type each time.

In addition, the optimum write setting value of the optical disk obtained by the setting value calculation function is stored in the storage unit of the host computer for each disk identification information previously recorded on each optical disk in order to identify the type of the optical disk. The host computer realizes an optimum setting value storing function to store the optimum writing setting value corresponding to the disc identification information read from the optical disc, from the storage unit. The optical disk device is set.
According to this, the optimum write setting value is stored for each type of optical disk, and writing is performed on the same type of optical disk using the optimum write setting value obtained in the past. And the writing process can be performed quickly.

Further, the recording quality test function is characterized in that the write setting values of the plurality of data to be written on the optical disc are determined based on the write setting values recorded in advance on the optical disc.
Further, the optical disc is a CD-R or a CD-RW, and the write setting value recorded in advance on the optical disc is a strategy information recorded in an ATIP of the CD-R or the CD-RW. Features.
The optical disk is a DVD-R or a DVD-RW, and the write setting value recorded in advance on the optical disk is a strategy information recorded in an LPP of the DVD-R or the DVD-RW. Features.
Further, the optical disc is a DVD + R or a DVD + RW, and the write setting value recorded in advance on the optical disc is strategy information recorded in an ADIP of the DVD + R or the DVD + RW.
According to this, since the recording quality test can be performed with the write setting value close to the optimum write setting value, processing such as obtaining the optimum write setting value with higher accuracy and efficiency can be performed.

Further, the recording quality test function is characterized in that the plurality of data are written in a user data area of an optical disk.
According to this, the write characteristics of the user data area can be accurately grasped, and more recording quality tests can be performed, as compared with the case where the write set value is obtained by writing to the PCA by OPC. Therefore, a more accurate and optimum write setting value can be obtained.

Also, disc identification information pre-recorded on each optical disc for identifying the type of the optical disc of the optical disc on which the plurality of data has been written by the recording quality test function, and the writing of each of the plurality of data. The host computer realizes a log file creation function of creating a log file including a set value and the recording quality information of each of the plurality of data measured by the recording quality test function. .
According to this, it is possible to obtain a log file including the disc identification information of the optical disc (that is, the disc type), the write setting value when the recording quality test is performed on the optical disc, and the corresponding recording quality information. Therefore, the recording quality test and the result can be efficiently grasped for each type of optical disc, and the cause of the writing failure, the writing quality of each optical disc, and the like can be efficiently analyzed.

Further, the host computer realizes a log file transmission function of transmitting the log file to another computer connected to the host computer via a communication line.
According to this, the log file can be easily used on other computers. For example, when a developer uses the log file, the log file is transmitted to another developer's computer to share information at the time of writing. can do.

Further, a log file encryption function of encrypting the log file is realized by the host computer, and the log file transmission function transmits the log file encrypted by the log file encryption function to another computer. It is characterized by transmitting.
According to this, when a log file is transmitted to another computer by the log file transmission function, it is possible to prevent a third party from grasping the contents of the log file when the log file is intercepted.

Further, the log file transmission function is capable of transmitting the log file to a computer of a manufacturer of the optical disk device.
According to this, when the general user uses the log file, the log file is sent to the optical disk device manufacturer, so that the manufacturer can quickly and in detail grasp the recording characteristics of each optical disk, the cause of the writing failure, and the like. , The user can be quickly provided with various services and the like.

Further, by transmitting a command to the optical disk device by the set value receiving function of receiving a write set value from the manufacturer's computer and the command transmission function, the data is written to the optical disk device when writing data to the optical disk. The host computer realizes a reception setting value setting function for setting a writing setting value received from the maker's computer by the setting value reception function as the setting value.
According to this, the optimum write setting value obtained as a result of the analysis of the log file transmitted to the optical disk device maker by the maker is received from the maker's computer, and the optical disk is written with the write setting value. It becomes possible.

The log file transmission function is capable of transmitting the log file to a posting computer having an electronic bulletin board capable of posting the log file in a downloadable state via a communication line.
According to this, the log file can be made publicly available on the communication line via the electronic bulletin board. This makes it possible to share information such as the writing characteristics of the optical disk among a plurality of users and manufacturers.

Further, by transmitting a command to the optical disk device by the log file download function of downloading the log file posted on the electronic bulletin board and the command transmission function, the data is written to the optical disk device when writing data to the optical disk. The host computer realizes a download setting value setting function for setting a writing setting value included in a log file downloaded by the log file downloading function as the setting value.
According to this, the user can write on the optical disk by using the write setting value posted on the electronic bulletin board based on the recording quality test performed by another user.

Further, an optical disk device control system according to the present invention has the following configuration in order to solve the above problems. In other words, the system comprises: a plurality of host computers on which the optical disk device control program according to claim 19 or 20 is readablely installed; an optical disk device connected to each of the host computers for writing data to an optical disk; and the posting computer. It is characterized by the following.
According to this, the log file created by executing the optical disk device control program on each host computer can be made publicly available on the communication line via the electronic bulletin board. This makes it possible to share information such as the write characteristics of the optical disk among a plurality of host computers (eg, between users or manufacturers).

  Further, a host computer according to the present invention has the following configuration in order to solve the above problems. That is, the optical disk device control program according to any one of claims 1 to 20 is installed so as to be readable.

Further, an optical disk device according to the present invention has the following configuration in order to solve the above problems. That is, an optical disc device for writing data to an optical disc, comprising a command analysis execution means for analyzing and executing a command received from the host computer, the command analysis execution means being connectable to a host computer, At the time of writing, a write setting command to set a write setting value such as a strategy or a laser power set value to a specified value, and a write command to write data to the optical disk with the write setting value set by the write setting command. A recording quality measurement command for measuring recording quality information, such as a jitter value or an error rate, of data written on an optical disc and transmitting the recording quality information to the host computer. It is characterized by the following.
According to this, the host computer can perform a recording quality test with various write setting values by the write setting command and the write command, and obtain the recording quality information by the recording quality measurement command. Therefore, during the development of the optical disk device, the recording quality test and the result can be efficiently grasped. In addition, when used by general users, by sending the recording quality information to the optical disk device manufacturer, the manufacturer can quickly and in detail grasp the recording characteristics of each optical disk, the cause of writing failure, etc., Support for users and various services can be quickly performed.

Further, the command analysis executing means receives the optimum write setting value of the optical disc from the host computer, and stores the discrimination information for each disc identification information pre-recorded on each optical disc in order to identify the type of the optical disc. The optimum setting value storage command stored in the storage means is provided so as to be able to analyze and execute, and the writing command reads the optimum writing setting value corresponding to the disc identification information read from the optical disc from the storage means, and It is characterized in that data can be written to the optical disc with an optimum write set value.
According to this, the optimum write setting value can be stored for each type of optical disc, and writing can be performed on the same type of optical disc using the optimum write setting value obtained in the past. There is no need to perform a recording quality test, and the writing process can be performed quickly.

The information processing apparatus further includes identification information transmitting means for reading disk identification information recorded on each optical disk in advance to identify the type of the optical disk and transmitting the read information to the host computer.
According to this, the host computer can perform storage, management or transmission to another computer by associating the result of the recording quality test on the optical disk and the result with the disk identification information of the optical disk. In addition, the recording quality test and the result can be grasped efficiently.

In addition, there is provided a means for reading a write setting value recorded in advance on the optical disc and transmitting the read write set value to the host computer.
Further, the optical disc is a CD-R or a CD-RW, and the write setting value recorded in advance on the optical disc is a strategy information recorded in an ATIP of the CD-R or the CD-RW. Features.
The optical disk is a DVD-R or a DVD-RW, and the write setting value recorded in advance on the optical disk is a strategy information recorded in an LPP of the DVD-R or the DVD-RW. Features.
Further, the optical disc is a DVD + R or a DVD + RW, and the write setting value recorded in advance on the optical disc is strategy information recorded in an ADIP of the DVD + R or the DVD + RW.
According to this, the host computer can perform the recording quality test with the write setting value close to the optimum write setting value, and therefore can perform processing such as obtaining the optimum write setting value more accurately and efficiently. it can.

Further, data can be written to a user data area of the optical disk by the write command.
According to this, since the recording quality test can be performed in the user data area, the write characteristics of the user data area can be grasped more accurately than when the write setting value is obtained by writing to the PCA by OPC. Since more recording quality tests can be performed, more accurate and optimum write setting values can be obtained.

  According to the optical disk device control program, the optical disk device control system, the host computer, and the optical disk device of the present invention, data can be written to the optical disk with more optimal write setting values. The work load for finding the optimal write setting value for the optical disk can be reduced, and when used by the optical disk device user, the optimal write setting value for the new type of optical disk can be used without waiting for the support of the optical disk device manufacturer. In addition to being able to perform writing, the manufacturer of the optical disk device can grasp information such as the type of optical disk used by the user and the write setting value at the time of writing failure, and can easily find a method (algorithm) for finding the optimum write setting value. And it is possible to change An effect such as.

  Hereinafter, preferred embodiments of an optical disk device control program, an optical disk device control system, a host computer, and an optical disk device according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an internal configuration of a host computer H in which an optical disk device control program C according to the present embodiment is installed in a readable manner, and an optical disk device D communicably connected to the host computer H. .
The optical disk device D does not necessarily need to be physically provided separately from the host computer H. For example, the optical disk device D is built in the housing of the host computer H, and is connected to the main board of the host computer H within the host computer H. It may be connected.

  The host computer H communicates with the optical disc device D via an input means 2 such as a keyboard and a mouse, which can be operated by a user to input data and the like, a display means 4 such as a display, and an interface such as ATAPI or USB. A communication means 6; a second communication means 8 for communicating with another computer (not shown) via a network N as a communication line such as a LAN or the Internet; And a control unit 10.

In the host computer H, an optical disk device control program C is provided (installed) in a computer-readable manner in the control unit 10.
The optical disk device control program C is executed by the control unit 10 to receive data input from the input unit 2 and to perform a process of displaying information such as a processing result on the display unit 4. F) A function 20, a macro analysis execution function 22 for analyzing and executing a macro program 30, which will be described later, stored in the hard disk 12, and various commands included in the macro program 30 analyzed by the macro analysis execution function 22. A command interface (I / F) function 24 as a command transmission function to be transmitted to the optical disk device D via the first communication means 6 and a log file recording the execution result of the macro program 30 by the macro analysis execution function 22 are created. Log file creation function 26 and encrypts the log file A log file encryption function 27, a log file transmission function 28 for transmitting the encrypted log file to another computer or the like via the second communication means 8 and the network N, and a log file transmission function 28 for transmitting the encrypted log file to the other computer or the like via the second communication means 8 and the network N. A setting value receiving / downloading function 36 as a reception setting value setting function and a download setting value setting function capable of receiving or downloading write setting value information and the log file from another computer or the like; A set value setting function 38 for setting the optical disc apparatus D to write data to the optical disc W with the write set value received or downloaded by the download function 36 or the write set value recorded in the log file. , A program to be realized by the host computer H.

The macro program 30 describes commands to be transmitted to the optical disk device D and various processes.
The macro program 30 can be rewritten by a user or replaced with another macro program file. Further, it is preferable that the macro program 30 to be executed by the macro analysis execution function 22 can be selected by the user from a plurality of macro programs 30, 30,.

The host computer H is connected to another computer (not shown) via a network N such as a LAN, the Internet, or a dedicated line.
For example, if the developer of the optical disk device maker uses the host computer H and the optical disk device D, for example, the host computer H is connected to the in-house LAN of the optical disk device maker and communicates with the computers of other developers in the company. It is good to connect as much as possible. Alternatively, when a general user uses the host computer H and the optical disk device D, for example, the host computer H may be communicably connected to a computer in an optical disk device maker via the Internet or the like.

  The optical disc device D includes a communication unit 50 that communicates with the host computer H through an interface such as an ATAPI or a USB, a control unit 52 that includes a CPU and a memory, and that can execute firmware recorded as a program in a flash ROM or the like (not shown). Is provided.

  The optical disk device D analyzes a command transmitted from the host computer H and executes the command. The command analysis executing unit 60 analyzes the command transmitted from the host computer H. Identification readout means 62 called and executed by the CPU, similarly, write set value readout means 64 executed when the write set value read command is analyzed, and write executed when the write command is analyzed. Means 66, a recording quality information transmitting means 68 which is executed when the recording quality measurement command is analyzed, a writing setting means 70 which is executed when the writing setting command is analyzed, and an optimum setting value storage command is analyzed. The optimal setting value storage means 71 executed when the Realized by being executed, and a firmware.

  Note that the functions of the identification information read command, the write set value read command, the write command, the write set command, the recording quality measurement command, and the optimum set value storage command of the present invention need not always be realized by one command. That is, a configuration may be such that a plurality of commands are combined to realize a function corresponding to these commands, or conversely, a single command may realize the functions of the plurality of commands.

  The identification information reading means 62 reads the disk identification information recorded in advance on a writable optical disk W such as a CD-R or a DVD + R inserted into the optical disk device D from the optical disk W via a servo driver and a laser driver (not shown). It is configured as firmware for reading and transmitting the disc identification information to the host computer H via the command analysis executing means 60 and the communication means 50.

The write set value reading means 64 reads the write set value previously recorded on a writable optical disc W such as a CD-R or a DVD + R inserted into the optical disc device D via a servo driver and a laser driver (not shown). , And writes the write setting value to the host computer H via the command analysis execution means 60 and the communication means 50.
As an example of the write setting value recorded in advance on the optical disc W, there is strategy information recorded in the ADIP of DVD + R.

  The writing setting means 70 is configured as firmware that sets a writing setting value 72 such as a laser power or a strategy when writing data to the optical disc W to a value specified by a writing setting command. The write setting value 72 is stored in the storage unit of the optical disk device D, and is reflected when data is written to the optical disk W with reference to the write unit 66 described later.

  The optimum setting value storage means 71 receives the optimum writing setting value (optimal setting value 74) of the optical disk from the host computer H, and stores it in the storage means of the optical disk device D for each disk identification information of the optical disk. Be composed. The optimum setting value 74 is reflected when data is written to the optical disk W with reference to a writing unit 66 described later.

  The writing means 66 is configured as firmware for writing data specified by the write command to an address on the optical disc W specified by the write command via a servo driver and a laser driver (not shown). At the time of writing, the writing means 66 refers to the writing setting value 72 or the optimum setting value 74 stored in the storage means and writes data with the setting based on the writing setting value 72 or the optimum setting value 74. At the time of writing, it is configured to select whether to write data based on the write setting value 72 or to write data based on the optimum setting value 74. This can be realized by configuring the reference setting value 72 or 74 to be selectable according to the parameters of the writing command, or preparing a separate writing command for each setting value 72 and 74 to be referenced.

  The recording quality information transmitting means 68 reads out the written data from the address specified by the recording quality measurement command on the optical disc W via a servo driver and a laser driver (not shown), and reads the jitter value of the data ( The recording quality information is measured, and the result information is transmitted to the host computer H via the command analysis executing means 60 and the communication means 50.

Next, the contents of the macro program 30 in the present embodiment will be described.
FIG. 2 is a flowchart showing the contents of the macro program 30. The macro program 30 describes a drive initialization routine S1 in which a command group for initializing the drive of the optical disk device D when the optical disk W is inserted into the optical disk device D, and an identification information read command, Routine S2 for reading disc identification information recorded on the optical disc W in advance, and a routine for reading a write set value (for example, strategy information recorded in the ADIP of DVD + R) in which a write set value read command is described and written on the optical disc W S3, a routine S4 for realizing a recording quality test function, a set value calculation function, and an optimum set value storage function, and a write setting command are described, and the optical disc apparatus D writes the optical disc with the optimum write set value obtained in the routine S4. Set to write data to W That includes routines S5 for realizing the optimum setting function.

The routine S2 of the macro program 30 describes an identification information read command and a command for storing the disk identification information transmitted from the optical disk device D in the storage means of the host computer H in response to the identification information read command. Further, an instruction to describe the read disk identification information in a log file by the log file creation function 26 is described.
Examples of the disc identification information recorded in advance on the optical disc W include the manufacturer name of the optical disc, the writable double speed, and the type of the dye used, which are recorded in advance on the PCA of the CD-R.

FIG. 3 is a flowchart showing the contents of the routine S3. This flowchart is for reading strategy information from ADIP of DVD + R.
The routine S3 is included in a routine S11 in which a write set value read command is described, a step S12 of waiting for an ADIP information message as a response message from the optical disc device D to the write set value read command in the routine S11, and the ADIP information message. Step S13 for reading out the strategy information and step S14 for storing the first to seventh parameters of the read out strategy information in the strategy variable area on the storage means of the host computer H.

FIG. 4 is a flowchart showing the contents of the routine S4 for realizing the recording quality test function, the set value calculation function, and the optimum set value storage function.
Routine S4 is a strategy defined by the first to seventh parameters stored in the strategy variable area, writes five data with different laser power setting values, measures the jitter value of the five data and optimizes the data. A routine S21 for obtaining a proper laser power set value, and a laser power set value obtained in the routine S21, the strategy X parameter (X is 1 to 7, corresponding to S22 to S28, respectively), and the five data are obtained. Routines S22 to S28 for writing and measuring the jitter values of the five data to find the optimum X-th parameter and storing the X-th parameter in the strategy variable area (note that in FIG. The routines S24 to S27 for obtaining the sixth parameter are omitted) and the same processing as the routine S21 is performed. And a routine S29 to perform every time.

FIG. 5 is a flowchart showing the contents of the routines S21 and S29 for finding the optimum laser power set value.
Routines S21 and S29 are steps S31 to read out the first to seventh parameters stored in the strategy variable area and use a write setting command to cause the optical disc device D to set the first to seventh parameters as write setting values; A step S32 of causing the optical disk device D to set the laser power set value to a predetermined value X by a command; a step S33 of writing the set value X to a log file by the log file creation function 26; Step S34 of causing the device D to write predetermined data to a predetermined address of a user data area of the optical disk, and having the recording quality measurement command cause the optical disk device D to measure the jitter value of the written data and transmit it to the host computer. Step S35, the received jitter value (recording quality information) is described in the log file by the log file creation function 26, and the data in which the optimum jitter value is measured among the written data is written. Step S37 of storing the laser power set value in the power variable area on the storage means of the host computer to realize the optimum set value storage function.

  Step S32 for setting the laser power set value and step S33 for writing data are performed a plurality of times (five times) with different laser power set values. Each time the laser power setting value X is changed from the standard laser power to five steps of two steps lower power, one step lower power, standard power, one step higher power, and two steps higher power. Is set.

FIG. 6 is a flowchart showing the contents of the routine S22 (see FIG. 4) for finding the optimal first strategy parameter.
The routine S22 reads the laser power set value stored in the power variable area, and causes the optical disc device D to set the laser power set value as a write set value by a write setting command, and a step S41 stored in the strategy variable area. Reading the first to seventh parameters, and causing the optical disc device D to set the first to seventh parameters as write setting values with a write setting command; and writing the first strategy parameter to the optical disc device D with the write setting command. Is set in the log file by the log file creation function 26 in step S43 to set the user data area to the predetermined value X. A step S45 of writing predetermined data to a predetermined address, a step S46 of causing the optical disc apparatus D to measure a jitter value of the written data and transmit the jitter value to the host computer with a recording quality measurement command, Step S47 for writing the recording quality information) in the log file by the log file creation function 26, and the value of the first strategy parameter at the time of writing the data whose optimum jitter value was measured among the written data is stored in the host. Step S48 of storing the optimum set value in the strategy variable area on the storage means of the computer to realize the optimum set value storage function.

  Step S43 for setting the first strategy parameter and step S44 for writing data are performed a plurality of times (five times) with different values X of the first strategy parameter. Each time, the value X of the strategy first parameter is two times lower than the value of the strategy first parameter stored in the strategy variable area, one step lower than the value of the strategy first parameter, and stored in the strategy variable area. The parameter value is changed and set to five levels, that is, one step higher, and two steps higher.

  The processing contents of the routines S23 to S28 for obtaining the optimal second to seventh parameters of the strategy are the same as those of the routine S22 in the processing of the routines S23 to S28. These are replaced with the second to seventh parameters.

Executing the macro program 30 by the macro analysis execution function 22 realizes a recording quality test function, a set value calculation function, and an optimum set value storage function, and the obtained optimum write set value is stored in the power variable area 32 and the strategy. It is stored in the variable area 34 (routine S4).
Further, the optimum write setting value obtained is set in the optical disc device D by the optimum setting function (routine S5). This is realized by transmitting the optimum write setting value to the optical disk device D by the write setting command or the optimum setting value storage command, and rewriting the write setting value 72 or the optimum setting value 74 of the storage means of the optical disk device D. Is done.
In the log file, the disc identification information of the optical disc (routine S2), the data write setting values (steps S33 and S43), and the jitter values (steps S36 and S47) are recorded.

  When the optimum set value storage command is used in the routine S5, the optimum write set value can be stored in the storage means of the optical disc device D for each disc identification information. At this time, the disk identification information used in the optical disk device D may be transmitted from the host computer H as a parameter of the optimum setting value storage command, or may be read out by the identification information reading means 62 of the optical disk device D. You may.

  In the routines S4 and S5, the optimum write setting value is stored in the storage means of the host computer H and / or the optical disk device D for each disk identification information. When performing writing by referring to the laser power setting value and strategy stored corresponding to the disc identification information, it is possible to perform optimal writing for that type of optical disc without performing a recording quality test each time. This is preferable because data can be written with a proper write set value.

In the recording quality test function and the set value calculation function realized by the macro program 30 according to the present embodiment, first, the strategy information (strategy first to seventh parameters) previously recorded on the optical disc W is read as shown in FIG. A plurality of (five) data are written using different laser powers, the jitter value of each data is measured, and an optimum laser power set value is obtained (routine S21). Subsequently, using the laser power setting value obtained in the routine S21, the parameters of each strategy are changed and a recording quality test is performed to obtain the optimum strategy parameters (routines S22 to S28). Here, the routines S22 to S28 are repeated twice. As a result, the first time, an approximate optimum value of each parameter is obtained, and the second time, each parameter becomes an approximate optimum value (that is, the combination of each parameter is almost optimum). Then, since each parameter is further finely adjusted, each parameter of the strategy can be obtained with higher accuracy. Thereafter, in a state where each parameter of the strategy becomes an optimum value, an optimum laser power set value is obtained again (routine 29), whereby an optimum laser power set value can be obtained with high accuracy.
Note that, of course, the algorithm for realizing the recording quality test function and the set value calculation function is not limited to the present embodiment.

  According to the host computer H, the optical disk device control program C, and the optical disk device D according to the present embodiment, a test writing algorithm for obtaining an optimum write setting value and an algorithm for obtaining an optimum write setting value (that is, recording quality) The algorithm of the test function and the setting value calculation function) is realized not by the firmware of the optical disk device D but by the host computer H, and therefore, it is possible to obtain an optimum writing setting value with higher accuracy by using a more complicated algorithm. . In addition, since the host computer H can grasp the information indicating the result of the recording quality test, the developer of the optical disc device D can refer to the result of the recording quality test, or create a log file including the information. , The information can be used effectively.

  Further, since each algorithm is described in the macro program 30, by rewriting or changing the macro program, various algorithms can be easily performed without the trouble of rewriting firmware as in the related art. it can.

Furthermore, since the recording quality test is performed by writing to the user data area, the writing characteristics of the user data area can be grasped more accurately than when the test writing is performed by OPC. , More test writing can be performed.
At this time, by writing data in the user data area, the optical disc W is wasted. However, in steps S37 and S48, each write setting value is set for each disc identification information of the optical disc W. If the information is stored in the strategy variable area and the power variable area, when writing to the same type of optical disk W (of the same disk identification information), the recording quality measurement is not performed, and the disk identification information is stored. The data can be written with the write setting value corresponding to (1) (Note that the log file including the disc identification information may be referred to). By doing so, although one optical disk is wasted, an optimum write setting value is obtained with high accuracy for that type of optical disk, so that the write failure rate for the same type of optical disk can be significantly reduced thereafter. . Therefore, as compared with the conventional case where, for example, eight out of ten failures have occurred for a low-quality optical disk, only one optical disk has to be sacrificed, and thereafter, the optimum optical disk is optimally adjusted. Writing can be performed, and the subsequent write failure rate can be greatly reduced.

When writing data to the optical disc W, the user can determine whether to perform writing based on the optimum setting value 74 stored in the storage means or to perform writing based on the write setting value recorded in advance on the optical disc W. It is preferable that the user can select the writing setting value by widening the selection range. This can be realized by a method of selecting which write setting value is to be used by a parameter of the write command, or providing a changeover switch in the optical disk device D.
Further, the optimum write setting value of the existing optical disc is stored in advance in a flash ROM or the like when the optical disc apparatus D is shipped from the factory as in the related art, and is stored in advance at the time of factory shipment when writing data to the optical disc W. Various write settings, such as whether to write based on the write set value, write based on the optimum set value 72 obtained by the recording quality test function, or write based on the write set value recorded in advance on the optical disc W, etc. It is even more preferable if the values are provided so as to be selectable.

Next, a plurality of host computers H on which the optical disk device control program C of the above embodiment is installed in a readable manner, the optical disk devices D of the above embodiment connected to the respective host computers H, and the optical disk device D A preferred embodiment of an optical disk device control system S including a computer M of a manufacturer and a posting computer B described later will be described with reference to FIG. Since the configurations of the host computer H and the optical disk device control program C are the same as those of the above-described embodiment, in FIG. 7, components unnecessary for description are omitted.
The “maker's computer” refers to a computer that can be operated by an employee or a worker of the manufacturer, such as a computer owned by the manufacturer.

  As shown in FIG. 7, in the optical disk device control system S of the present embodiment, each host computer H, the computer M of the manufacturer of the optical disk device D, and the posting computer B are connected via a network N such as the Internet. Connected for communication.

The host computer H executes the optical disk device control program C, encrypts the log file created by the log file creation function 26 by the log file encryption function 27, and encrypts the log file by the log file transmission function 28 via the network N. To the computer M of the manufacturer or the bulletin computer B.
The transmission of the log file by the log file transmission function 28 is not particularly limited, but can be realized by, for example, a known technique of attaching a file to an e-mail.

Since the log file is transmitted after being encrypted by the log file encryption function 27, even if the log file is intercepted on the network N, the contents of the log file are prevented from being grasped by a third party. It is possible to prevent the privacy of the user and the leakage of the technology of the optical disk device D.
Note that the encryption and decryption at the time of transmission and reception of the log file can be realized by, for example, a known public key encryption technique.

Upon receiving the log file from the host computer H, the manufacturer's computer M decrypts the log file by executing the transmission / reception program 90, stores it in the storage unit 92, and receives the log file on an output device (not shown) such as a display. This is displayed to inform the manufacturer's person in charge.
In response to the reception of the log file, the person in charge of the manufacturer causes the computer M of the manufacturer to execute the log file analysis program 94, or analyzes the cause of the writing failure by using predetermined analysis equipment (not shown). And detailed information on the usage status of the optical disc device in the market and the occurrence status of the writing error can be obtained.
The analysis of the log file may be automated, for example, by configuring the analysis program 94 as a program for automatically analyzing the log file without manual intervention such as a person in charge of the manufacturer.

Further, the computer M of the manufacturer can obtain a more optimal write setting value from the result of the analysis of the specific log file (recording of the recording quality test performed on the optical disk device D that transmitted the log file). In this case, it is stored in the storage means 92, and the optimum write setting value is transmitted to the host computer H via the transmission / reception program 90.
This may also be performed by the operation of the person in charge of the manufacturer, but the optimum write setting value obtained by, for example, the analysis program 94 is automatically transferred to the host computer by the function of the transmission / reception program 90 without human intervention. H.
It is preferable to use an encryption technique for this communication, because it is possible to prevent the privacy of the user of the optical disc device D and the leakage of the technical secret matter of the manufacturer.

  The host computer H receives the write setting value information transmitted from the maker's computer M by the setting value receiving / downloading function 36 realized by executing the optical disk device control program C, and also executes the setting value setting function 38 The optical disk device D is set to write data to the optical disk W with the received write setting value.

Thereby, the user of the optical disk device D receives from the computer M of the maker a truly optimum write setting value obtained as a result of analyzing the log file transmitted to the optical disk device maker by an expert of the maker. Then, it becomes possible to write on the optical disk with the write setting value.
Further, the optical disk device manufacturer can quickly take countermeasures by analyzing the cause of the write failure based on the log file received from the user's host computer H. Various kinds of support and services can be performed using the information of the log file, and the quality thereof can be improved, such that detailed information on the error occurrence state can be obtained and utilized for subsequent marketing.
Also, if the host computer H is used within the manufacturer of the optical disk device, the log file in which the result of the recording quality test is recorded can be shared between the computer that performed the recording quality test and the computer of another developer. And an effect that the development work by the team can be performed more efficiently can be obtained.

  Further, the log file transmission function 28 transmits the log file to the maker's computer, and / or the setting value receiving / downloading function 36 and the setting value setting function 38 receive and set the write setting value to the optical disk. In such a case, the user can automatically and suitably write the data on the optical disk with the optimum write setting value without being conscious of the write setting value for the optical disk. It can be carried out.

Next, the posting computer B will be described.
The posting computer B has an electronic bulletin board that is realized by the electronic bulletin board program 82 being executed by the control unit 80. The electronic bulletin board is provided so that information can be posted and referenced from any computer via the network N. This electronic bulletin board can decrypt the log file transmitted and received from the host computer H and store it in the storage unit 84, and can post it in a state where it can be downloaded by another computer or the like via the network N.

Further, the electronic bulletin board of the posting computer B can be arbitrarily written by the user in response to each posted log file, such as the situation when the recording quality corresponding to the log file is performed and the impression on the writing result. Is configured to be able to post descriptions that can be referred to by users.
Further, the electronic bulletin board of the posting computer B is configured to be able to post, from the manufacturer's computer M or the like, advice information and the like on a method of setting writing of an optical disk by the manufacturer.

  This makes it possible to share information about write settings between users, and between manufacturers and users, and to use write settings obtained based on recording quality tests performed by specific users. , Etc., can be used by any other user, and a community can be formed to share information regarding the writing of the optical disc.

The log file includes not only information such as the disc identification information of the optical disc described above, each data write setting value, and a jitter value, but also information stored in a storage unit such as an EEP-ROM or a flash ROM of the optical disc apparatus. Includes information such as a serial number, offset values for correcting variations unique to the optical disk device (for example, variations in focus, tracking, and tilt) recorded at the time of shipment of the optical disk device from the factory, accumulated laser operating time, and error history. For example, it is possible to perform analysis by a maker or the like with higher accuracy, and it is possible to obtain more detailed information on the use state of the optical disk device, the error occurrence state, and the like, which is preferable.
When posting a log file on the electronic bulletin board using the function of the electronic bulletin board program 82, information that is connected to personal information such as a serial number may be deleted from the information included in the log file. This can prevent leakage of the user's personal information, which is preferable.

  In this embodiment, only the laser power set value and the strategy are described as the write set values. However, the write set values of the present invention include APC set values, S / H set values, and servo set values. Includes everything that can be a parameter when writing data to the optical disc, such as set values. Further, only the jitter value is described as the recording quality information, but in addition to the jitter value, the error rate is measured, and the recording quality information of the present invention is used to indicate the recording quality of the data written on the optical disc. Includes all information.

FIG. 2 is a block diagram illustrating an internal configuration of an optical disk device control program, a host computer, and an optical disk device according to the present embodiment. 6 is a flowchart showing the contents of a macro program. 5 is a flowchart showing the contents of a routine of a macro program for reading a write set value recorded on an optical disk. 9 is a flowchart showing the contents of a routine of a macro program for realizing a recording quality test function, a set value calculation function, and an optimum set value storage function. 9 is a flowchart showing the contents of a routine for finding an optimum laser power set value of the macro program. 5 is a flowchart showing the contents of a routine for finding an optimal first strategy parameter in the macro program. FIG. 1 is a block diagram illustrating a configuration of an optical disk device control system according to an embodiment.

Explanation of reference numerals

H Host computer D Optical disk device N Network (communication line)
C Optical disk device control program S Optical disk device control system M Manufacturer's computer B Display computer W Optical disk 2 Input means 4 Display means 6 First communication means 8 Second communication means 10 Control unit 12 Hard disk 20 User interface function 22 Macro analysis execution function 24 Command interface function (command transmission function)
26 Log file creation function 27 Log file encryption function 28 Log file transmission function 30 Macro program 36 Setting value reception / download function (Setting value reception function, log file download function)
38 Setting value setting function (Reception setting value setting function, download setting value setting function)
Reference Signs List 50 communication means 52 control unit 60 command analysis execution means 62 identification information reading means 64 writing setting value reading means 66 writing means 68 recording quality information transmitting means 70 writing setting means 71 optimum setting value storage means 72 writing setting value 74 optimum setting value ( Optimal write setting)
82 Electronic bulletin board program 90 Transmission / reception program 94 Analysis program

Claims (30)

Read by a host computer connectable to an optical disk device that writes data to the optical disk,
An optical disk device control program for causing the host computer to realize a command transmission function of transmitting various commands to the optical disk device and controlling the optical disk device,
By transmitting a command to the optical disk device by the command transmission function, the optical disk device is caused to write a plurality of data to the optical disk with different write set values such as a strategy and a laser power set value for each data. The recording quality test function of measuring recording quality information such as a jitter value and an error rate of each of the plurality of data and transmitting the recording quality information to the host computer is realized by the host computer. Optical disk device control program. The command transmission function includes:
A write setting command for setting the write setting value when writing data to the optical disc to the optical disc device, to a specified value;
A write command for writing data to the optical disk device at a write setting value set by the write setting command on the optical disk;
A recording quality measurement command for causing the optical disc device to measure the recording quality information of the data written on the optical disc, and transmitting the recording quality information to the host computer, is provided so as to be transmittable to the optical disc device,
The recording quality test function includes:
With the write setting command and the write command, the optical disc device causes a plurality of data to be written on an optical disc by writing the write setting value differently for each data,
The recording quality measurement command causes the optical disc device to measure the recording quality information of each of the plurality of data written on the optical disc, and to transmit the recording quality information to the host computer. Item 7. The optical disk device control program according to Item 1. A macro analysis execution function for analyzing and executing a macro program stored rewritably in storage means of the host computer, the host computer realizes the function,
The recording quality test function is realized in the host computer by analyzing and executing a macro program including a command sent to the optical disc device by the macro analysis execution function. 3. The optical disk device control program according to 1 or 2.   The host computer performs a setting value calculation function for finding an optimum write setting value for optimizing recording quality on the optical disc based on the recording quality information received from the optical disc device by the host computer by the recording quality test function. The optical disk device control program according to any one of claims 1 to 3, which is realized by: A macro analysis execution function for analyzing and executing a macro program stored rewritably in storage means of the host computer, the host computer realizes the function,
5. The optical disk device control program according to claim 4, wherein the set value calculation function is realized by the host computer by analyzing and executing a macro program by the macro analysis execution function.   By transmitting a command to the optical disk device by the command transmission function, the optimum write setting value obtained by the setting value calculation function is used as a write setting value when writing data to the optical disk. 6. The optical disk device control program according to claim 4, wherein the host computer realizes an optimum setting function to be set.   The host computer and / or the optical disc are used to determine the optimum write setting value of the optical disc obtained by the setting value calculation function for each disc identification information recorded in advance on each optical disc in order to identify the type of the optical disc. 7. The optical disk device control program according to claim 4, wherein the host computer realizes an optimal setting value storage function to be stored in a storage unit of the device. The optimum write set value of the optical disk obtained by the set value calculation function is stored in storage means of the host computer for each disk identification information previously recorded on each optical disk in order to identify the type of the optical disk. Causing the host computer to realize an optimal set value storage function to
7. The optical disk according to claim 6, wherein the optimum setting function reads the optimum write setting value corresponding to the disk identification information read from the optical disk from the storage unit and causes the optical disk device to set the optimum write setting value. Device control program.   9. The recording quality test function according to claim 1, wherein the write setting value of the plurality of data to be written to the optical disc is determined based on a write setting value recorded in advance on the optical disc. An optical disk device control program according to claim 1. The optical disc is a CD-R or a CD-RW,
10. The optical disk device control program according to claim 9, wherein the write setting value recorded in advance on the optical disk is strategy information recorded in ATIP of the CD-R or CD-RW. The optical disc is a DVD-R or a DVD-RW,
10. The optical disk device control program according to claim 9, wherein the write setting value recorded in advance on the optical disk is strategy information recorded in an LPP of the DVD-R or DVD-RW. The optical disk is a DVD + R or a DVD + RW;
10. The optical disk device control program according to claim 9, wherein the write setting value recorded on the optical disk in advance is strategy information recorded in ADIP of the DVD + R or DVD + RW.   13. The optical disk device control program according to claim 1, wherein the recording quality test function writes the plurality of data in a user data area of an optical disk.   The disc identification information pre-recorded on each optical disc to identify the type of the optical disc on which the plurality of data has been written by the recording quality test function, and the write setting value of each of the plurality of data. And causing the host computer to realize a log file creation function of creating a log file including the recording quality information of each of the plurality of data measured by the recording quality test function. An optical disk device control program according to any one of claims 1 to 13.   15. The optical disk device control program according to claim 14, wherein the host computer realizes a log file transmission function of transmitting the log file to another computer connected to the host computer via a communication line. A log file encryption function of encrypting the log file is realized by the host computer,
16. The storage medium according to claim 15, wherein the log file transmission function transmits the log file encrypted by the log file encryption function to another computer.   17. The optical disk device control program according to claim 15, wherein the log file transmission function is capable of transmitting the log file to a computer of a manufacturer of the optical disk device. From the manufacturer's computer, a set value receiving function of receiving a write set value,
By transmitting a command to the optical disk device by the command transmission function, a write setting value received from the maker's computer by the set value reception function as a write setting value when writing data to the optical disk in the optical disk device. 18. The optical disk device control program according to claim 17, wherein the host computer realizes a reception setting value setting function for setting a value.   19. The log file transmission function according to claim 15, wherein the log file can be transmitted to a posting computer having an electronic bulletin board capable of posting the log file in a downloadable state via a communication line. An optical disk device control program according to claim 1. A log file download function for downloading a log file posted on the electronic bulletin board;
By transmitting a command to the optical disk device by the command transmission function, a write setting included in a log file downloaded by the log file download function is set as a write setting value when writing data to the optical disk. 20. The optical disk device control program according to claim 19, wherein the host computer realizes a download setting value setting function for setting a value. A plurality of host computers in which the optical disk device control program according to claim 19 or 20 is installed so as to be readable, and
An optical disk device connected to each of the host computers for writing data to an optical disk;
An optical disc device control system, comprising: the posting computer.   21. A host computer, wherein the optical disk device control program according to claim 1 is installed so as to be readable. An optical disc device for writing data to an optical disc, comprising a command analysis executing means for analyzing and executing a command received from the host computer, connectable to a host computer,
The command analysis execution means,
When writing data to an optical disc, a write setting command for setting a write setting value such as a strategy or a laser power setting value to a specified value;
A write command for writing data to the optical disk with a write setting value set by the write setting command;
A recording quality measurement command for measuring recording quality information such as a jitter value or an error rate of data written on an optical disc and transmitting the recording quality information to the host computer is provided so as to be analyzed and executed. An optical disc device characterized by the above-mentioned. The command analysis executing means receives the optimum write setting value of the optical disc from the host computer, and stores the set value in the storage means for each disc identification information pre-recorded on each optical disc in order to identify the type of the optical disc. The optimum set value storage command to be analyzed and executed is provided,
The write command can read the optimum write setting value corresponding to the disc identification information read from the optical disc from the storage unit and write data to the optical disc with the optimum write set value. The optical disk device according to claim 23, wherein:   25. The optical disk device according to claim 23, further comprising: identification information transmitting means for reading disk identification information recorded on each optical disk in advance to identify the type of the optical disk and transmitting the information to the host computer.   26. The optical disk device according to claim 23, further comprising: a unit configured to read a write setting value recorded in advance on the optical disk and transmit the read write setting value to the host computer. The optical disc is a CD-R or a CD-RW,
27. The optical disc apparatus according to claim 26, wherein the write setting value pre-recorded on the optical disc is strategy information recorded in the CD-R or CD-RW ATIP. The optical disc is a DVD-R or a DVD-RW,
27. The optical disc apparatus according to claim 26, wherein the write setting value pre-recorded on the optical disc is strategy information recorded on the LPP of the DVD-R or DVD-RW. The optical disk is a DVD + R or a DVD + RW;
27. The optical disc apparatus according to claim 26, wherein the write setting value pre-recorded on the optical disc is strategy information recorded in ADIP of the DVD + R or DVD + RW.   The optical disk device according to any one of claims 23 to 29, wherein data can be written to a user data area of the optical disk by the write command.

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