JP5683127B2 - Recording device - Google Patents

Description

The present invention relates to a recording apparatus for recording video.

JP 2009-076175 A

  2. Description of the Related Art Conventionally, there is known an apparatus for recording a moving image or sound on a randomly accessible recording medium such as a hard disk (HDD) or a flash memory (for example, see Patent Document 1). In addition, there are some which have a function of converting a recording format of a recorded moving image or sound and recording it on an original recording medium or another recording medium.

  When recording and recording a recorded moving image or audio, it may not be possible to record on the same recording medium depending on the converted recording format. For example, in the case of a format that cannot record both NTSC and PAL moving images on the same recording medium, if a PAL moving image has already been recorded, NTSC moving images cannot be recorded.

  Conventionally, such restrictions are not known until the user instructs conversion of the recording format, which is inconvenient.

An object of the present invention is to provide a recording apparatus that eliminates such inconveniences.

The recording apparatus according to the present invention records a first moving image signal having a first number of pixels in a predetermined broadcasting system on a recording medium selected from the first recording medium and the second recording medium. Conversion means for converting the first moving image signal recorded on the first recording medium into a moving image signal of the predetermined broadcasting system having a second number of pixels smaller than the first number of pixels; In response to a conversion instruction, the control means for controlling the recording means to record the moving image signal converted by the conversion means on the second recording medium, and the broadcast method different from the predetermined broadcast method, When the moving image signal of the second number of pixels is recorded on the second recording medium, the conversion instruction indicates that the converted moving image signal cannot be recorded on the second recording medium. and means for notifying before, the control means, the second In accordance with the recording instruction for the to the recording medium first video signal, the said second said first video signal and controls the recording means to record on the recording medium, the second recording medium No. Control for performing the notification when a moving image signal of the second number of pixels, which can record one moving image signal and is different from the predetermined broadcasting method, is recorded on the second recording medium. It is characterized by performing .

The recording apparatus according to the present invention includes a recording unit that records a first moving image signal having a first number of pixels in a predetermined broadcasting system on a recording medium, and the first moving image signal recorded on the recording medium. Conversion means for converting the second pixel number smaller than the first number of pixels into the moving image signal of the predetermined broadcasting method, and the moving image signal converted by the conversion means in response to the conversion instruction, in the recording A recording unit configured to control the recording unit to record on the medium; and when the moving picture signal having the second number of pixels is recorded on the recording medium in a broadcasting system different from the predetermined broadcasting system. Means for notifying that the converted moving image signal cannot be recorded on the medium before the conversion instruction, and the control means , in response to the recording instruction of the first moving image signal, Recording the first moving image signal on the recording medium; Controlling said recording means so is capable of recording said first video signal on the recording medium, recorded in the predetermined broadcasting format different broadcasting systems, the second number of pixels of the moving image signal recording medium In such a case, the control is performed so that the notification is performed .

  According to the present invention, it is possible to confirm before the conversion process whether the recording format of the recorded moving image can be converted.

1 is a schematic block diagram of a video camera according to an embodiment of the present invention. It is a directory block diagram recorded on a recording medium. It is a flowchart which shows the discrimination | determination process at the time of recording medium mounting | wearing. It is a flowchart which shows another discrimination | determination process at the time of recording medium mounting | wearing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic block diagram of a video camera 100 which is an embodiment of a recording apparatus according to the present invention.

  The imaging unit 101 captures a subject, generates and outputs a moving image signal indicating the subject. The imaging unit 101 includes an optical system such as a zoom lens and a focus lens, an imaging element such as a CCD, an iris, an AD converter that converts an image signal from the imaging element into a digital signal, and a processing circuit that performs necessary processing on the image signal. Etc. In the present embodiment, the imaging unit 101 generates an NTSC video signal. Further, in this embodiment, an HD signal having the number of pixels per frame of 1920 pixels × 1080 pixels is output.

  The audio input unit 102 includes a microphone, an amplifier, an AD converter, and the like, acquires external audio, and outputs a digital audio signal.

  The signal processing unit 103 includes an encoding / decoding unit or a compression / decompression unit that compresses and decodes an image signal and an audio signal. That is, the signal processing unit 103 receives the moving image signal from the imaging unit 101 in the recording mode. The audio signal is encoded according to the H.264 (MPEG4 / AVC) system, and the audio signal from the audio input unit 102 is encoded using the AC3 system. In the reproduction mode, the signal processing unit 103 decodes the reproduced encoded video signal and encoded audio signal. Although details will be described later, the signal processing unit 103 also converts a moving image signal recorded on the recording media 110 and 112 into an SD signal and converts the recording format into a predetermined file format.

  The display control unit 104 displays a moving image and various types of information on the display unit 105 in accordance with instructions from the control unit 107. The display unit 105 includes a known display device such as a liquid crystal display panel.

  The memory 106 stores a moving image signal, an audio signal, and various types of information. The control unit 107 has a microcomputer and other necessary components, and controls the operation of each unit of the video camera 100 in accordance with a program stored in the memory 106. The operation unit 108 includes various switches such as a power switch, a trigger switch for instructing start and stop of moving image shooting, a switch to a reproduction mode, and a menu switch. The control unit 107 controls each unit in response to an instruction from the operation unit 108.

  The recording / reproducing units 109 and 111 record the moving image signal, the audio signal, and various types of information on the recording media 110 and 112 and reproduce from the recording media 110 and 112 in accordance with instructions from the control unit 107. The recording media 110 and 112 are randomly accessible recording media such as a memory card or a hard disk (HDD). In this embodiment, the recording medium 110 is built in the video camera 100, and the recording medium 112 is detachable from the video camera 100 by a mounting / discharging mechanism (not shown).

  The recording / reproducing unit 111 detects the loading / unloading of the recording medium 112 and notifies the control unit 107 to that effect. The output unit 113 outputs the moving image signal and audio signal being shot, or the reproduced moving image signal and audio signal to an external display device or the like.

  The bus 114 is used to transfer various data and commands between the units of the video camera 100.

  In this embodiment, when the user operates the operation unit 108, one of the two recording media 110 and 112 can be selected, and moving images and audio are recorded on the selected recording media. Also during playback, moving images and audio are played back from the selected recording medium.

  A basic shooting process and playback process of the video camera 100 will be described. Assume that the recording medium 110 is selected as the recording destination.

  When the power of the video camera 100 is turned on by the operation unit 108, the control unit 107 displays a moving image corresponding to the moving image signal from the imaging unit 101 on the display unit 105 and enters a recording pause state. In this state, when an instruction to start shooting is given by the operation unit 108, the control unit 107 controls each unit and starts recording a moving image signal and an audio signal. The imaging unit 101 and the audio input unit 102 each output a moving image signal and an audio signal under the control of the control unit 107. The moving image signal and the audio signal are temporarily stored in the memory 106 via the bus 114.

  The signal processing unit 103 encodes the moving image signal and the audio signal stored in the memory 106 and stores the encoded data in the memory 106. The recording / reproducing unit 109 corresponding to the recording medium 110 selected as the recording destination reads out the moving image signal and the audio signal from the memory 106 in accordance with an instruction from the control unit 107 and records them on the selected recording medium 110. In this embodiment, the recording / reproducing units 109 and 111 manage the moving image signal and the audio signal recorded on the recording media 110 and 112 as moving image files according to a predetermined file system. In this embodiment, a series of scene moving image signals and audio signals recorded between a shooting start instruction and a shooting stop instruction are managed as one file. The control unit 107 creates a management information file including the recording position of each moving image file recorded on the recording media 110 and 112 and various additional information, and records the management information file on the same recording media 110 and 112.

  The control unit 107 controls the recording / reproducing units 109 and 111 in response to an instruction to stop shooting using the operation unit 108, and stops recording of moving image signals and audio signals on the recording media 110 and 112.

  The file structure of data recorded on the recording media 110 and 112 will be described. FIG. 2 shows a file structure of data recorded on the recording media 110 and 112. The root directory 201 is the highest directory. The directory 202 has a directory name HD and is a directory arranged under the root directory 201. The HD signal shot and recorded by the video camera 100 is stored in the HD directory 202 in accordance with the first recording format (format). For example, the first recording format is the AVCHD format. The directory 203 has a directory name of PLAYLIST and is a directory arranged under the HD directory 202. The PLAYLIST directory 203 stores a playlist file 204 for HD signals.

  The directory 205 has a directory name “STREAM” and is a directory arranged under the HD directory 202. The STREAM directory 205 stores a plurality of moving image files 206 of HD signals. Each moving image file 206 accommodates moving image data and audio data compressed and encoded as described above. The file name of each moving image file 206 is obtained by adding “.MTS” to a 5-digit number. Each moving image file is referred to as an MTS file.

The directory 207 is a directory whose name is INFO and is arranged under the HD directory 202. The INFO directory 207 stores a plurality of information files 208 related to the HD signal moving image file. Each information file 208 contains information regarding the MTS file stored in the STREAM directory 205. The file name of each information file 208 is obtained by adding “.INF” to a 5- digit number. These information files 208 are referred to as INF files.

  An MTS file 206 and an INF file 208 having the same number are set or paired. For example, information about the moving image file 206 with the file name “00000.MTS” is recorded in the information file 208 with the file name “00000.INF”. In the INF file 208, information for reproducing the corresponding MTS file 206 is stored. For example, a table indicating the offset position from the head of each I picture in MPEG moving image data stored in the MTS file 206 is recorded in the INF file 208.

  The playlist file 204 describes the playback order of these MTS files 206. Further, the play list file 204 stores information indicating the broadcasting system of the moving image data stored in the MTS file 206. Specifically, information for determining whether the moving image broadcasting system is the NTSC system or the PAL system is stored.

  In the AVCHD format, a plurality of HD directories cannot be created on one recording medium, and only one HD directory can be created. Further, it is prohibited to record a plurality of broadcast-type videos simultaneously on one recording medium. Specifically, only the moving image of either NTSC system or PAL system can be recorded.

  The directory 209 has a directory name SD and is a directory arranged under the root directory 201. As will be described later, the SD signal converted from the HD signal by the signal processing unit 103 is stored in the SD directory 209 in an SDVIDEO format different from the AVCHD format. Here, the SDVIDEO format is the second recording format.

  The directory 210 has a directory name “MGR” and is a directory arranged under the SD directory 209. The MGR directory 210 stores a program management file 211 for SD signals. The program management file 211 is referred to as an MGR file.

  The directory 212 is a directory whose directory name is “PRG” with a 3-digit number added, and is arranged under the SD directory 209. The directory 212 stores a program information file 213, a plurality of moving image files 214 of SD signals, and a plurality of information files 215 corresponding to the moving image files 214. The directory 212 is referred to as a program directory.

  There is an upper limit to the number of SDVIDEO format moving image files that can be recorded in one program directory 212. When the number of moving image files stored in one program directory 212 reaches the upper limit, a new program directory is created, and moving image files are stored thereunder. Directory 216 is also a program directory.

  The moving image file 214 is a file including an SD signal moving image signal and an audio signal, and has a file name in which “.MOV” is added to a three-digit number. Each moving image file 214 is referred to as an MOV file. The information file 215 has a file name in which “.MOI” is added to a three-digit number. The information file 215 is referred to as an MOI file.

  The MOV file 214 and the MOI file 215 to which the same number is added are set or paired. For example, information about the moving image file 214 with the file name “000.MOV” is recorded in the information file 215 with the file name “000.MOV”. The information file 215 stores information for reproducing the moving image of the corresponding moving image file 214. For example, a table indicating the offset position from the head of each I picture in MPEG moving image data stored in the moving image file 214 is recorded.

  The program information file 213 has a file name in which “.PRI” is added to a 3-digit number. The program information file 213 contains information related to files stored in the program directory 212. For example, the reproduction order of the moving image file 214 stored in the program directory 212 is shown. The reproduction order between the program directories 212 and 216 is described in the MGR file 211. That is, in the SDVIDEO format, the playback order of all the moving image files 214,... Is determined by the MGR file 211 and the PRI files 213,.

  The PRI file 213 also stores information indicating whether the moving image data of the MOV file 214 stored in the program directory 212 is NTSC or PAL. Even in this SDVIDEO format, a plurality of SD directories cannot be created on one recording medium, and only one SD directory can be created. In addition, it is prohibited to record a plurality of broadcast system videos simultaneously on one recording medium.

  In this embodiment, since only the HD signal is recorded on the built-in recording medium 110, files under the SD directory 209 in FIG. 2 are not recorded on the recording medium 110. When the HD moving image signal recorded on the recording medium 110 is converted into an SD moving image signal and recorded on the recording medium 112, the SD directory 209 or lower is created on the recording medium 112, and the converted SD moving image signal is recorded. Since the recording medium 112 is a replaceable recording medium, the SD directory 209 may already be created when the recording medium 112 is attached to the video camera 100. In this case, the SD directory 209 is not newly created.

  The reproduction process of this embodiment will be described. Assume that the recording medium 110 is selected as the playback source. When the operation unit 108 gives an instruction to switch to the playback mode, the control unit 107 controls the recording / playback unit 109 corresponding to the selected recording medium 110 to play back the management file from the recording medium 110 and store it in the memory 106. Remember.

  Based on the management file stored in the memory 106, the control unit 107 reads the head portion of the moving image signal included in the moving image file recorded on the recording medium 110. Then, the signal processing unit 103 decodes the head portion of the read video signal and sends it to the display control unit 104. The display control unit 104 generates a representative image of this scene by reducing the size of the decoded top screen. By executing this process for a predetermined number of moving image files recorded on the recording medium 110, an index screen composed of a plurality of representative images is generated and displayed on the display unit 105.

  The user operates the operation unit 108, selects a desired scene to be reproduced from the representative images of each scene displayed on the index screen, and instructs the reproduction.

  In response to this playback instruction, the control unit 107 controls the recording / playback unit 109 to play back the moving image file corresponding to the selected representative image. The recording / playback unit 109 reads the designated moving image file from the recording medium 110 and stores it in the memory 106. The signal processing unit 103 reads out the moving image signal and the audio signal from the memory 106, decodes them, and stores them in the memory 106. The display control unit 104 reads out the moving image signal decoded from the memory 106 and supplies it to the display unit 105. As a result, the reproduced moving image is displayed on the display unit 105. The audio signal is output from a speaker (not shown).

  When there is an instruction to stop playback, the control unit 107 stops reading the moving image file by the recording / playback unit 109 and causes the display unit 105 to display the index screen again.

  A determination process when the recording medium 112 is loaded will be described. The video camera 100 has a function of converting an HD moving image signal recorded on the recording medium 110 into an SD moving image signal and recording it on the recording medium 112. However, if a PAL moving image signal has already been recorded in the SDVIDEO format on the recording medium 112 that has been loaded, the NTSC SD moving image signal cannot be recorded in the SDVIDEO format. Therefore, in this embodiment, when the recording medium 112 as the recording destination recording medium is loaded, a determination process is performed to determine whether or not the converted SD video signal can be recorded in the SDVIDEO format on the recording medium 112. . If the converted SD video signal cannot be recorded in the SDVIDEO format, a warning is displayed.

  FIG. 3 shows a flowchart of this determination processing. The process shown in FIG. 3 is executed by the control unit 107.

  When the recording / reproducing unit 111 detects the mounting of the recording medium 112 or the operation unit 108 is turned on, the processing of FIG. 3 starts. The control unit 107 causes the recording / playback unit 111 to check whether the HD directory 202 and the SD directory 209 of FIG. 2 are recorded on the recording medium 112 (S301). It is determined whether the HD directory 202 has been created and a moving image is recorded in the AVCHD format, which is the first recording format (S302).

  When the HD moving image signal is already recorded in the AVCHD format on the recording medium 112, the control unit 107 checks whether or not the state of the recording medium 112 matches the following conditions (S303). That is, the condition 1 is that the number of recorded moving image scenes (number of moving image files) is less than the upper limit of the number of scenes defined in the AVCHD format. Condition 2 is that the file format is correct. Condition 3 is that the file system is correct. Condition 4 is that the moving image broadcasting system recorded in the AVCHD format matches the moving image broadcasting method recorded by the video camera 100. Condition 5 is that no protection is applied. Condition 6 is that the writing speed is equal to or higher than a predetermined speed.

  In this embodiment, the video camera 100 records an HD moving image signal according to the AVCHD format that is the first recording format. Therefore, for condition 1, the number of recording scenes of the recording medium 112 that is the recording destination recording medium is detected, and it is determined whether or not the number is the number of recordable scenes in the AVCHD format.

  For condition 2, it is detected whether the file format of the recording medium 112 is a file format defined in the AVCHD format. For condition 3, it is determined whether the file system of the recording medium 112 is a file system that can be handled by the video camera 100.

  Regarding condition 4, it is detected whether the broadcast system of the moving image signal recorded in the AVCHD format on the recording medium 112 is the same as the broadcast system of the moving image signal recorded by the video camera 100. Since the video camera 100 records an NTSC video signal, the video camera 100 determines whether or not a broadcast system other than the NTSC system, such as a PAL video, is recorded on the recording medium 112.

  For condition 5, it is determined whether or not protection is set so that data cannot be written to the recording medium 112.

  The control unit 107 checks whether or not the recording medium 112 satisfies all the conditions 1 to 6, and determines whether or not the HD moving image signal can be recorded in the AVCHD format on the recording medium 112 (S304). If any of the conditions is not satisfied, the control unit 107 causes the display unit 105 to display warning information indicating that the captured moving image signal cannot be recorded on the recording medium 112 (S309).

  When all of the conditions 1 to 6 are satisfied and the HD moving image signal can be recorded in the AVCHD format (S304), the control unit 107 records the moving image signal in the SD VIDEO format that is the second recording format on the recording medium 112. It is determined whether or not (S305). When the SD video signal in the SDVIDEO format is not recorded on the recording medium 112 (S305), the processing is ended as it is.

  When an SD video signal in the SDVIDEO format is recorded on the recording medium 112 (S305), the control unit 107 checks whether or not the recording medium 112 satisfies the following condition 7 (S306). Condition 7 is that the moving image broadcasting system recorded in the SDVIDEO format matches the moving image broadcasting method recorded by the video camera 100. Since the video camera 100 records an NTSC video signal, it determines here whether or not a broadcast system other than the NTSC system, for example, a PAL video is recorded in the SDVIDEO format on the recording medium 112.

  The control unit 107 checks whether or not the recording medium 112 satisfies the condition 7, and determines whether or not the converted SD moving image signal can be recorded on the recording medium 112 in the SDVIDEO format (S307). When the condition 7 is not satisfied, the control unit 107 displays a warning indicating that the converted moving image signal cannot be recorded on the recording medium 112 on the display unit 105 (S308).

  If the condition 7 is satisfied and the converted SD video signal can be recorded in the SDVIDEO format (S307), the process is terminated as it is.

  The HD / SD conversion process will be described. While the index screen of the moving image recorded on the recording medium 110 is displayed in the playback mode, the user operates the operation unit 108 to select a moving image file to be converted. Then, the user instructs the operation unit 108 to convert the selected moving image file. In response to this conversion instruction, the control unit 107 reads the designated HD moving image file from the recording medium 110, converts it into an SD moving image signal by the signal processing unit 103, and records it on the recording medium 112 in the SDVIDEO format.

  At this time, the control unit 107 calculates a data amount (predicted value) when the designated moving image signal is converted into the SDVIDEO format in order to confirm in advance whether or not the recording medium 112 falls within the free space range. To do. Here, the encoding format of the HD video signal recorded at the time of shooting is converted to MPEG2. The audio signal is not converted in the AC3 system. The data amount is calculated when the data rate (bit rate) of the converted video signal is a predetermined value. The calculated data amount is compared with the free capacity of the recording medium 112, and it is determined whether or not the converted moving image signal can be recorded on the recording destination recording medium.

  When the free capacity of the recording medium 112 is smaller than the calculated data amount, the control unit 107 causes the display unit 105 to display a warning screen indicating that the free space of the recording medium 112 is small and cannot be converted, and the index screen is displayed again. Is displayed.

  Further, when the free capacity of the recording medium 112 is equal to or greater than the calculated data amount, the control unit 107 instructs the recording / reproducing unit 109 to sequentially read the designated moving image file from the recording medium 110. The control unit 107 also instructs the signal processing unit 103 to convert the reproduced HD video signal. The signal processing unit 103 once decodes the reproduced moving image signal, then reduces the screen size to the SD size (horizontal 720 pixels × horizontal 480 pixels), compression-encodes it using the MPEG2 method, and outputs it to the recording / reproducing unit 111. . The recording / playback unit 111 records the converted SD video signal and audio signal from the signal processing unit 103 on the recording medium 112 in the SDVIDEO format. At this time, one SD moving image file recorded on the recording medium 112 corresponds to one moving image file to be converted recorded on the recording medium 110.

  As described above, in this embodiment, when the recording medium 112 is loaded, it is determined whether or not the moving image signal is recorded in the SDVIDEO format that is the recording format of the converted moving image signal. Further, it is determined whether or not the moving image broadcasting system recorded in the SDVIDEO format on the recording medium 112 matches the moving image broadcasting method recorded by the video camera 100. If either of them does not match, a warning is given to the effect, so that the user can convert the HD moving image recorded on the recording medium 110 into an SD moving image and record it on the recording medium 112 when the recording medium 112 is loaded. Can know.

  The embodiment has been described in which the recording medium 110 is used as a source recording medium and the recording medium 112 is used as a recording destination recording medium. Is possible. For example, in FIG. 1, the recording / reproducing unit 109 and the recording medium 110 may not be provided. In this case, the shot HD video signal is recorded on the recording medium 112 in the AVCHD format. Further, after the HD moving image signal recorded on the recording medium 112 is read and converted into an SD moving image signal by the signal processing unit 103, the SD moving image is recorded on the recording medium 112 by the recording / playback unit 111 in the SDVIDEO format. With such a configuration, when the recording medium 112 is loaded, the processing shown in FIG. 3 is executed. Thus, when the recording medium 112 is loaded, the user can know whether or not the HD moving image recorded on the recording medium 112 can be converted into an SD moving image and recorded on the recording medium 112.

  The determination process shown in FIG. 3 may be changed as shown in FIG. In FIG. 4, the same processes as those in FIG. 3 are denoted by the same reference numerals, and the description thereof is omitted. That is, the processing from step S301 to step S306 is the same as that in FIG.

  After step S306, the control unit 107 determines whether or not the recording medium 112 satisfies the condition 7, that is, whether or not the SDVIDEO format moving image broadcasting method matches the broadcasting method of the video camera 100 (S401). . When the broadcast systems do not match (S401), the control unit 107 changes the name of the SD directory recorded on the recording medium 112 at that time to another directory name (S402). At this time, by changing to a predetermined directory name such as SD_BK, it becomes possible to easily recognize that the directory after the change was originally recorded.

  On the other hand, if the broadcasting system is the same in S401 (S401), the process is terminated as it is.

  When the name of the SD directory is changed (S402), the SD directory 209 is newly generated on the recording medium 112 when the HD moving image signal recorded on the recording medium 110 is converted. Then, the converted video signal is recorded on the recording medium 112 in the SDVIDEO format.

  The conversion function may be deleted from the signal processing unit 103. Then, when the recording medium 112 is loaded, the processing shown in FIG. 3 is executed. In this process, when a moving image signal in the SDVIDEO format is recorded on the recording medium 112 in a broadcasting system different from the broadcasting system of the video camera 100, a warning to that effect is given.

  In this way, when the conversion process is performed with the recording medium 112 attached, the user can be informed in advance that the conversion process cannot be executed because the broadcasting system is different.

  Although the embodiment applied to the video camera has been described, the present invention can be applied to an apparatus that converts a recording format of a recorded moving image signal after acquiring the moving image signal and recording it on a recording medium in addition to the video camera. is there.

Claims (5)

Recording means for recording a first moving image signal having a first number of pixels in a predetermined broadcasting system on a recording medium selected from the first recording medium and the second recording medium;
Conversion means for converting the first moving image signal recorded on the first recording medium into the predetermined broadcasting system moving image signal having a second number of pixels smaller than the first number of pixels;
Control means for controlling the recording means so as to record the moving image signal converted by the conversion means on the second recording medium in response to an instruction of conversion;
When the moving image signal of the second number of pixels of a broadcasting method different from the predetermined broadcasting method is recorded on the second recording medium, the converted moving image signal with respect to the second recording medium Means for notifying that the conversion cannot be recorded before the conversion instruction,
The control means, in response to a recording instruction of the first video signal for the second recording medium, and controls the recording device to record the first video signal to said second recording medium, The first moving image signal can be recorded on the second recording medium, and the moving image signal having the second number of pixels in a broadcasting system different from the predetermined broadcasting system is recorded on the second recording medium. A recording apparatus that performs control to perform the notification when there is a recording medium.   The moving image converted to the second recording medium when the moving image signal of the second number of pixels of the broadcasting method different from the predetermined broadcasting method is not recorded on the second recording medium. 2. The recording apparatus according to claim 1, further comprising means for notifying that the signal cannot be recorded. Recording means for recording a first moving image signal having a first number of pixels in a predetermined broadcasting system on a recording medium;
Converting means for converting the first moving image signal recorded on the recording medium into a moving image signal of the predetermined broadcasting system having a second number of pixels smaller than the first number of pixels;
Control means for controlling the recording means so as to record the moving image signal converted by the converting means on the recording medium in response to an instruction of conversion;
When the moving image signal of the second number of pixels of a broadcasting method different from the predetermined broadcasting method is recorded on the recording medium, the converted moving image signal cannot be recorded on the recording medium. And means for notifying before the conversion instruction,
Said control means in response to said instruction for recording the first video signal, the controls the recording device to record the first video signal to said recording medium, said first video signal to said recording medium Control is performed to perform the notification when the moving image signal having the second number of pixels in the broadcasting system different from the predetermined broadcasting system is recorded on a recording medium. A recording apparatus.   The converted video signal cannot be recorded on the recording medium when the video signal of the second number of pixels of the broadcasting system different from the predetermined broadcasting system is not recorded on the recording medium. The recording apparatus according to claim 3, further comprising means for notifying the notification.   5. The recording apparatus according to claim 1, further comprising an imaging unit configured to output the predetermined broadcast system moving image signal. 6.

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