JP2006031794A - Recording device and method and reproducing device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate browsing data recorded on a recording area for auxiliary data, when the recording on the recording medium is performed by interleaving a recording area for the main data and a recording area for the auxiliary data. <P>SOLUTION: A digital camera (100), which records the data on a disk (113) by each recording unit in which one recording unit having a prescribed size is a video unit area for the main data and a PRU area for the auxiliary data, includes: a CPU (109) reproduction list generation means for generating a reproduction list for displaying on the same screen an image concerned with the image data recorded on the video unit area and an image concerned with the image data recorded on the PRU area, when the image data related to the image data recorded on the video unit area are recorded on the PRU area; and a disk I/F (108) for recording the generated reproduction list on the disk. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording apparatus and method, a reproducing apparatus, and a method, and more particularly, a recording apparatus and method for recording data on a recording medium in a method using a plurality of recording areas as one recording unit, and data recorded by the method. The present invention relates to a playback apparatus and method for playing back video.

  Conventional proposals for recording audio and image information in after-recording (hereinafter referred to as “after-recording”) onto a disk-shaped recording medium include those disclosed in Patent Document 1 and Patent Document 2.

  In any of the documents, a first recording area for main data composed of video or audio and a second recording area for auxiliary data represented by post-recording audio, still images, and the like have a predetermined size on a recording medium. In this method, recording is performed by interleaving with a recording unit.

  Patent Document 1 records image and audio information in units of packs on a recording medium as shown in FIG. 9, and in order to facilitate post-recording, a sub-picture signal with no data recorded or an empty pack for audio are used. It is to be prepared in advance.

  As shown in FIG. 10, Patent Document 2 includes a first data area composed of video or audio, and a second data area having Post Recording Unit (PRU) as a post-recording data area to be reproduced in synchronization therewith. Then, the first data area and the second data area are recorded as one unit on the recording medium, and a management program for managing one or more units is also recorded on the recording medium.

JP 11-259992 A JP 2002-373480 A

  Each of the above-described conventional examples has proposed a method of recording on a recording medium by interleaving a first recording area for main data and a second recording area for auxiliary data represented by post-recording audio and still images. Is. There are cases where nothing is recorded in the second recording area for auxiliary data, or image data such as still images are recorded on the recording medium recorded by these methods. However, these conventional examples do not describe a method for easily browsing image data recorded in the second recording area. That is, when examining what kind of image is recorded in the second recording area by the conventional method, the user must confirm all data recorded on the recording medium while reproducing and monitoring. It was a difficult task for users.

  The present invention has been made in view of the above problems, and is recorded in the recording area for auxiliary data when the recording area for main data and the recording area for auxiliary data are interleaved and recorded on the recording medium. The purpose is to make it easy to view the data.

  In order to achieve the above object, the first recording area for main data and the second recording area for auxiliary data having a predetermined size are set as one recording unit, and data is recorded on the recording medium for each recording unit. The recording device of the present invention for recording records the first image data when the second image data related to the first image data recorded in the first recording area is recorded in the second recording area. A reproduction list generation unit configured to generate a reproduction list for displaying the image related to the image data and the image related to the second image data on the same screen; and a recording unit configured to record the generated reproduction list on the recording medium. .

  In addition, the recording according to the present invention, in which the first recording area for main data and the second recording area for auxiliary data having a predetermined size are set as one recording unit, and data is recorded on the recording medium for each recording unit. When recording the second image data related to the first image data recorded in the first recording area in the second recording area, the method includes: A playlist generating step for generating a playlist for displaying the image related to the second image data on the same screen; and a recording step for recording the generated playlist on the recording medium.

  Also, a book for reproducing data recorded on a recording medium for each recording unit, with a first recording area for main data and a second recording area for auxiliary data having a predetermined size as one recording unit. The reproducing device of the invention includes a detecting unit that detects that image data is recorded in the second recording area, and the first recording when the image data is recorded in the second recording area. A reproduction list generating unit configured to generate a reproduction list for displaying the image related to the image data recorded in the area and the image related to the image data recorded in the second recording area on the same screen;

  Also, a book for reproducing data recorded on a recording medium for each recording unit, with a first recording area for main data and a second recording area for auxiliary data having a predetermined size as one recording unit. The reproducing method of the invention includes a detection step of detecting that image data is recorded in the second recording area, and the first recording when the image data is recorded in the second recording area. A playlist generating step of generating a playlist for displaying the image related to the image data recorded in the area and the image related to the image data recorded in the second recording area on the same screen.

  According to the present invention, when the recording area for main data and the recording area for auxiliary data are interleaved and recorded on the recording medium, the data recorded in the recording area for auxiliary data can be easily browsed. can do.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. However, the dimensions, shapes, relative arrangements, and the like of the components exemplified in the present embodiment should be changed as appropriate according to the configuration of the apparatus to which the present invention is applied and various conditions. It is not limited to.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described.

  FIG. 1 is a block diagram showing a configuration of a video camera to which the present invention is applied in the first embodiment. The video camera according to the first embodiment encodes captured image data in a known encoding format such as MPEG2 or JPEG, and records / reproduces it on a magneto-optical disk such as a DVD-RAM.

  In FIG. 1, reference numeral 101 denotes an imaging unit including a lens and an imaging device, 102 denotes a camera signal processing unit that processes image data from the imaging unit 101, and 103 denotes image data and control data between the blocks of the video camera 100. A bus for performing transfer, 104 is a memory, 105 is a display control unit for controlling the display operation of the EVF 106, and 106 is an EVF including a liquid crystal panel and the like.

  Reference numeral 107 denotes a CODEC that encodes and decodes image data in accordance with an encoding format such as MPEG2 or JPEG, 113 denotes a disk that is a recording medium such as a DVD-RAM, 108 denotes image data, audio data, or the like for the disk 113. Disc I / F for recording / reproducing the control data, 109 a CPU for comprehensively controlling the video camera 100, 110 various operation keys, 111 a character generating unit for generating a character image such as a menu, 112 for image data This is an input / output unit that exchanges various types of data with external devices.

  FIG. 2 is a schematic view showing the appearance of the video camera 100 of FIG. As shown in FIG. 2, an EVF 106 is provided on the main body of the video camera 100. Reference numeral 201 denotes a main dial for setting the operation mode of the video camera 100. Reference numeral 202 denotes a trigger key for instructing start and end of recording when the movie camera mode is set by the main dial 201. The main dial 201, the trigger key 202, and a playback switch, a menu switch for performing various settings of the video camera, etc. (not shown) are all included in the operation key 110 in FIG. The user can set the operation mode of the video camera 100 by operating the main dial 201 of FIG.

  In the main dial 201, the still camera mode is a mode in which one frame of image data is recorded as a still image on the disk 113 in accordance with the operation of the trigger key 202, and the movie camera mode is in the form of moving image data on the disk 113 in accordance with the operation of the trigger key 202. It is a recording mode. The reproduction mode is a mode in which still image data or moving image data is read from the disk 113 and reproduced.

  First, the recording operation of the first embodiment in the video camera 100 when the movie camera mode is selected will be described. Recording is started when the movie camera mode is set by the main dial 201 in FIG. 2 and the trigger key 202 is operated.

  Image data obtained by the imaging unit 101 is subjected to well-known camera signal processing by the camera signal processing unit 102 and written to the memory 104 via the bus 103. The CODEC 107 reads out the image data from the memory 104, encodes it in a format according to MPEG2, and then writes it back into the memory 104 again. The disk I / F 108 has a known optical laser pickup, a magnetic head, a mechanism for driving the disk 113, and the like, reads the encoded image data from the memory 104, and records it on the disk 113. When the trigger key 202 is operated again, the CPU 109 controls the CODEC 107 and the disk I / F 108 to stop recording image data. In the first embodiment, after a start of recording is instructed by the trigger key 202, a series of moving image data recorded until the stop of the recording is instructed by operating the trigger key 202 again is stored on the disc 113 as one file. Record.

  At this time, the display control unit 105 displays a moving image according to the moving image data obtained by the imaging unit 101 on the EVF 106. Further, the CPU 109 controls the character generation unit 111 to generate a character indicating the camera operation state and mode, and outputs the character to the display control unit 105. The display control unit 105 multiplexes this character with a moving image and displays it on the EVF 106.

  The state of the moving image data recorded on the disk 113 is shown in FIG. Reference numeral 301 in FIG. 3 denotes file system management information, in which a file name, creation time, address information on the disk, and the like are recorded. Reference numeral 302 denotes AV stream data recorded as a file. As shown in FIG. 3, post recording post recording unit (PRU) and video unit in which image and audio information are multiplexed are recorded as interleaved as AV stream data 302.

  When normal movie recording is performed, the AV stream is recorded only in the Video Unit area of the AV stream data 302 in FIG. 3, and no data is recorded in the PRU area.

  Next, the recording operation of the first embodiment in the video camera 100 when the still camera mode is selected will be described. When the still camera mode is set by the main dial 201 in FIG. 2 and the trigger key 202 is operated, the image data for one screen obtained by the imaging unit 101 is captured. The captured image data for one screen is subjected to well-known camera signal processing by the camera signal processing unit 102 and written to the memory 104 via the bus 103. Then, the CODEC 107 reads the image data from the memory 104, encodes the image data by a known still image encoding method such as JPEG, and then writes the image data to the memory 104 again. The disk I / F 108 reads the encoded image data from the memory 104 and records the still image data on the disk 113 as one file. In this case, still image data is recorded in the PRU area of the AV stream data 302 in FIG.

  Next, the playlist generation function in the first embodiment will be described.

  The reproduction list is data indicating the reproduction procedure and reproduction time of the image data recorded on the disk 113 as described above, the display position on the screen of a plurality of image data, and the like. For example, the reproduction list is described in a description language such as SMIL, and includes a header in which a file name and the like are described, reproduction, display operation description data, a footer, and the like. In the first embodiment, as shown in FIG. 3, in the recording / reproducing apparatus in which the video unit area composed of video and audio and the PRU area for auxiliary data are interleaved and recorded in the recording medium, an image is displayed in the PRU area. When data is recorded, a reproduction list file is generated that displays the image data recorded in the VideoUnit area and the image data recorded in the PRU area on the same screen.

  A procedure for generating the playlist file of the first embodiment will be described with reference to the flowchart of FIG.

  This processing is performed by the CPU 109 of FIG. 1 integrating and controlling the entire blocks of the video camera shown in FIG.

  First, in step S400, when the still camera mode is set by the main dial 201 of FIG. 2 and the trigger key 202 is operated, image data for one screen is captured and camera signal processing is performed. In step S401, encoding is performed using an encoding method such as JPEG. In step S402, it is determined whether or not the still image shooting operation has ended. If not, the operations in steps S400 and S401 are repeated. For example, in the case of the still image continuous shooting mode, the operations in steps S400 and S401 are repeated until a predetermined number of images are shot or while the trigger key 202 is pressed. If it is determined in step S402 that the still image shooting operation has been completed, the still image data shot in step S403 is recorded as a file in the PRU area on the disk 113.

  Still image data is recorded in the PRU area of the AV stream data 302. However, if the number of still images is large, it may not necessarily enter one PRU. In such a case, it may be divided into a plurality of PRU areas and recorded. In step S404, a process for detecting whether or not there is already a playlist file in the disk 113 is performed. If it is determined in step S404 that there is no playlist file on the disc 113, a process for generating a playlist file is performed in step S405. The reproduction list file generated here describes a reproduction operation for displaying the moving image 501 recorded in the VideoUnit area and the still image 502 recorded in the PRU area on the same screen as shown in FIG. .

  In addition, when a plurality of (for example, three) still images are recorded in the PRU area, as shown in FIG. 6, a moving image 601 recorded in the VideoUnit area and three still images recorded in the PRU area. A playlist file describing an operation for displaying 602 to 604 on the same screen may be generated.

  If it is determined in step S404 that there is already a playlist file on the disc 113, the process proceeds to step S406, and the moving image recorded in the VideoUnit area and the still image recorded in the PRU area as shown in FIGS. A process of updating the description data to the playlist file describing the operation of displaying the image on the same screen is performed. Next, in step S407, the playlist file finally generated or updated is recorded on the disk 113, and the series of processing ends. In the disk medium, the file system management information 301 is normally recorded at a predetermined address on the inner periphery or the outer periphery of the disk, so images and audio data are recorded in other areas, and the playlist data is recorded in this image. And recorded in the recording area of the audio data. When a playlist is newly generated and recorded, information regarding this playlist is stored in the management information.

  In this way, when generating a playlist file describing a playback operation for displaying a moving image recorded in the VideoUnit portion and a still image recorded in the PRU portion on the same screen, other playlists created by the user in the past are generated. In order to distinguish from the file, a unique file name may be given to the playlist file generated in the first embodiment (for example: DISC_ALL_CHECK.LST). Further, in the search process of step S404, (DISC_ALL_CHECK.LST) may be searched as a play list file search condition in the disc 113.

  Next, the operation at the time of reproducing the image data recorded on the disk 113 in this way will be described. When the main dial 201 is operated and the reproduction mode is set, the CPU 109 controls the disk I / F 108 to reproduce the data of the reproduction list file (for example, DISC_ALL_CHECK.LST) recorded on the disk 113 and reproduce it. Store the list in internal memory. When the playback key of the operation key 110 is operated in this state, the CPU 109 follows the playback display description data described in the playback list that has been played back in advance, and stores the moving image and the PRU area stored in the VideoUnit area as described above. The disc I / F 108 is controlled to display the recorded still image on the same screen. The disc I / F 108 reproduces the moving image data recorded in the VideoUnit area and the still image data recorded in the PRU area from the disc 113 and outputs them to the CODEC 107. The CODEC 107 decodes the reproduced image data and outputs it to the display control unit 105 and the input / output unit 112. As a result, images as shown in FIGS. 5 and 6 are displayed on the EVF 106. The output unit 112 also outputs data indicating the same image to, for example, an external monitor.

  As described above, when a still image is recorded in the PRU area, a playlist file is generated or updated. For example, the shooting time of the moving image recorded in the VideoUnit area and the still image recorded in the PRU area There may be a case where there is a large difference in the shooting time. In this case, since the relevance of both images is small, the user may be confused when displayed on the same screen. In this way, when the difference between the shooting times of both images is greater than or equal to a predetermined value, a condition may be added so that the playlist is not generated or updated.

  When recording data on a disk-shaped medium, it may take time to read data during reproduction because the optical laser pickup or magnetic head performs a seek operation when the recording position on the disk is greatly separated. For example, considering an example in which AV stream data 701 as shown in FIG. 7 is recorded on the disc 113 and a still image is recorded only in the PRU area P701 in the figure, the Video Unit area P700 at the head of the AV stream is recorded. It takes time to read the data and then read the data in the PRU area P701, and it is expected that it is difficult to display the moving image in the VideoUnit area P700 and the still image in the PRU area P701 on the same screen. . In such a case, when the moving image of the Video Unit area P702 in the vicinity of the PRU area P701 is displayed, the image data recorded in the PRU area P701 is displayed on the same screen, that is, the part indicated by A702 in FIG. A playlist file that displays only image data on the same screen may be created.

  That is, when the AV stream data 701 as shown in FIG. 7 is played back in the first embodiment, the part indicated by the area A701 in FIG. 7 displays only the moving image of the VideoUnit area, and the part indicated by the area A702. May display a moving image in the VideoUnit area P702 and a still image recorded in the PRU area P701 on the same screen, and a playback operation may be performed such that only the moving image in the VideoUnit area is displayed in the portion indicated by the area A703.

  In other words, the recording time close to and the recording position close may be selected as moving image data to be reproduced simultaneously with the still image.

  In addition, for example, a case where the amount of data stored in one VideoUnit area is small and the time taken to display the image data in the area A702 is very short, such as the area A702 in FIG. In this case, when the moving image and the still image are displayed on the same screen as shown in FIG. 5, the still image is displayed only for a short time, and it becomes difficult for the user to grasp the contents of the image. In such a case, a display time limit may be added to the description of the playlist, such as displaying a time for displaying one still image recorded in the PRU unit for 3 seconds or more.

  In the first embodiment, DISC_ALL_CHECK.NET is distinguished from other playlist files. Although the description has been given using the file name LST, it is needless to say that the file name can be distinguished from other reproduction list files.

  In the first embodiment, an example in which a still image is recorded in the PRU area has been described. However, it may not be a still image as long as the still image can be recorded in the PRU area. Data may be used.

  As described above, according to the first embodiment, the video unit area composed of video and audio and the PRU area for auxiliary data are recorded by interleaving in the recording medium, and such data is reproduced. When recording image data in the PRU area in the device, a playlist file that automatically displays the image data recorded in the VideoUnit area and the image data recorded in the PRU area on the same screen is automatically viewed. However, it is possible to easily check the contents of the still image recorded in the PRU area at a time.

  In the first embodiment, the case where the program data is described in SMIL has been described. However, other than this, XML (eXtensible Markup Language), SGML (Standard Generalized Markup Language), HTML (Hyper Text Markup Language) It can also be described in Apple's QuickTime file format or the like.

  Also, MPEG2 and JPEG described as compression methods are examples, and the present invention is not limited by the type of encoding format.

<Second Embodiment>
Hereinafter, a second embodiment of the present invention will be described.

  Since the configuration of the video camera according to the second embodiment is the same as that of the first embodiment shown in FIG. The feature of the second embodiment is that the CPU 109 is inserted into the PRU area when a disc 113 in which a video unit area composed of video and audio and a PRU area for auxiliary data are interleaved and recorded is inserted in the recording medium. Describes the playback operation to detect that the image data is recorded and display the moving image recorded in the VideoUnit area and the image recorded in the PRU area on the same screen when recording of the image data is detected. Is to generate a playlist file.

  A disc 113 recorded by another camera that does not use the system of the first embodiment and recorded by interleaving the video unit area including video and audio and the PRU area for auxiliary data in the recording medium is inserted. In this case, unlike the first embodiment, there is no playlist file in the disc 113 that describes the playback operation for displaying the moving image recorded in the VideoUnit area and the still image recorded in the PRU area on the same screen. . As described above, the second embodiment is effective in examining what kind of image is recorded in the PRU area of the disk 113 recorded by another recording system.

  An initial operation performed when the disc 113 in the second embodiment is reproduced will be described with reference to FIG.

  In step S800, when the main dial 201 of FIG. 2 is operated and the playback mode is set, the CPU 109 controls the disc I / F 108 to search all the playlist files recorded on the disc 113, and VideoUnit. It is searched whether there is a play list file (here, DISC_ALL_CHECK.LST) that displays the moving image recorded in the area and the still image recorded in the PRU area on the same screen. In step S801, if it is determined that there is a playlist file (DISC_ALL_CHECK.LST) on the disk 113, it is determined that the disk is a disk created by the camera of the first embodiment, and the initial operation is terminated. Here, in steps S800 and S801, in the second embodiment, in order to distinguish from other playlist files, DISC_ALL_CHECK. The file name LST is used, but any name can be used as long as it can be distinguished from other playlist files as in the first embodiment.

  If it is determined in step S801 that there is no playlist file (DISC_ALL_CHECK.LST) on the disk 113, the file system management information on the disk 113 is reproduced in step S802, and whether image data is recorded in the PRU area. Search for.

  If it is determined in step S803 that no image data is recorded in the PRU area, the initial operation is terminated. If it is determined in step S803 that image data is recorded in the PRU area, a playlist file that displays the moving image recorded in the VideoUnit area and the still image recorded in the PRU area on the same screen in step S804. A process of generating (DISC_ALL_CHECK.LST) is performed. The playlist file generated here is generated by a procedure similar to the procedure described with reference to FIG. 4 in the first embodiment, and is recorded in the Video Unit area as shown in FIG. 5 (or FIG. 6). This is a reproduction list file describing a reproduction operation for displaying an image 501 and a still image 502 recorded in the PRU area on the same screen. Thereafter, the reproduction list file finally generated in step S805 is recorded on the disk 113, and the initial operation is terminated.

  It should be noted that these initial processes may be performed every time when the disc 113 is inserted into the video camera 100.

  When the reproduction key of the operation key 110 is operated after the initial operation is completed, the CPU 109 controls the disk I / F 108 to reproduce the reproduction list data recorded on the disk 113 (for example, DISC_ALL_CHECK.LST). Store in the internal memory. The CPU 109 displays the moving image recorded in the VideoUnit area and the still image recorded in the PRU area on the same screen in the same manner as in the first embodiment according to the reproduction display description data described in the reproduction list reproduced in advance. In this way, the disk I / F 108 is controlled. The disc I / F 108 reproduces the moving image data recorded in the VideoUnit area and the still image data recorded in the PRU area from the disc 113 and outputs them to the CODEC 107. The CODEC 107 decodes the reproduced image data and outputs it to the display control unit 105 and the input / output unit 112. As a result, images as shown in FIGS. 5 and 6 are displayed on the EVF 106. The input / output unit 112 also outputs data indicating a similar image to an external monitor, for example.

  Also, as a condition for generating a play list, it is possible to consider the recording position on the disc, the shooting time limit of each image data, the display time limit of the image in the PRU area, and the like as in the first embodiment. Not too long.

  As described above, according to the second embodiment, when the disc 113 in which the video unit area composed of video and audio and the PRU area for auxiliary data are interleaved and recorded is inserted in the recording medium, the PRU is inserted. When it is detected that image data is recorded in the area, and recording of the image data is detected, a playback operation for displaying the moving image recorded in the VideoUnit area and the image recorded in the PRU area on the same screen is performed. Generate the described playlist file. Then, by reproducing according to the instruction of the generated playlist file, it is possible to check the contents of the still image recorded in the PRU area at a time while viewing the moving image in the VideoUnit area.

<Other embodiments>
In the first and second embodiments, the case where the present invention is applied to a digital camera capable of performing both recording and playback operations has been described. However, the means for interleaving and storing data in the format shown in FIG. Also, the present invention can be widely applied to apparatuses having at least one of means for reading and reproducing data recorded by interleaving in the format shown in FIG.

  Another object of the present invention is to supply a storage medium (or recording medium) in which a program code of software that realizes the functions of the above-described embodiments is recorded to a system or apparatus, and the computer (or CPU or Needless to say, this can also be achieved by the MPU) reading and executing the program code stored in the storage medium. In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an operating system (OS) running on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included. Examples of the storage medium for storing the program code include a flexible disk, hard disk, ROM, RAM, magnetic tape, nonvolatile memory card, CD-ROM, CD-R, DVD, optical disk, magneto-optical disk, MO, and the like. Can be considered. Also, a computer network such as a LAN (Local Area Network) or a WAN (Wide Area Network) can be used to supply the program code.

  Furthermore, after the program code read from the storage medium is written into a memory provided in a function expansion card inserted into the computer or a function expansion unit connected to the computer, the function is based on the instruction of the program code. It goes without saying that the CPU or the like provided in the expansion card or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a block diagram which shows the structure of the video camera in embodiment of this invention. It is the schematic which shows the external appearance of the video camera of FIG. It is a figure which shows the state of the moving image data recorded on the recording medium. It is a flowchart which shows the procedure which produces | generates the play list file in the 1st Embodiment of this invention. It is a figure which shows the example which displayed the moving image recorded on the VideoUnit area | region in the 1st Embodiment of this invention, and the still image recorded on the PRU area | region on the same screen. It is a figure which shows the example which displayed the moving image recorded on the VideoUnit area | region and the several still image recorded on the PRU area | region in the 1st Embodiment of this invention on the same screen. It is a figure which shows the state of the moving image data recorded on the recording medium. It is a flowchart which shows the initial stage operation | movement at the time of reproduction | regeneration of 2nd Embodiment. It is a figure which shows schematic structure of the conventional image data. It is a figure which shows another schematic structure of the conventional image data.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Video camera 101 Image pick-up part 102 Camera signal processing part 103 Bus 104 Memory 105 Display control part 106 EVF
107 CODEC
108 Disk I / F
109 CPU
110 Operation Keys 111 Character Generation Unit 112 Input / Output Unit 113 Disc (Recording Medium)
201 Main dial 202 Trigger key

Claims (19)

A recording apparatus for recording data on a recording medium for each recording unit, with a first recording area for main data and a second recording area for auxiliary data having a predetermined size as one recording unit,
When the second image data related to the first image data recorded in the first recording area is recorded in the second recording area, the image related to the first image data and the second image data are recorded. Playlist generating means for generating a playlist for displaying the image related to the image data on the same screen;
And a recording means for recording the generated reproduction list on the recording medium. Reading means for reading out the first image data, the second image data and the reproduction list recorded on the recording medium;
Based on the reproduction list, the first image data and the second image by the reading means for displaying the image related to the first image data and the image related to the second image data on the same screen. The recording apparatus according to claim 1, further comprising a control unit that controls a data reading operation.   The play list generation means displays the first and second image data on the same screen when the difference between the recording time of the first image data and the recording time of the second image data is within a predetermined range. The recording apparatus according to claim 1, wherein a reproduction list is generated.   The playlist generating unit displays the first and second image data on the same screen when the distance between the first recording area and the second recording area on the recording medium is within a predetermined range. The recording apparatus according to claim 1, wherein:   5. The recording apparatus according to claim 1, wherein the play list generation unit generates a play list so that the second image data is displayed for a predetermined time or more.   6. The recording apparatus according to claim 1, wherein the play list generating unit assigns a file name to the generated play list that is different from other play lists already recorded on the recording medium. .   The recording apparatus according to claim 1, wherein the recording medium is a disk-shaped recording medium. A reproduction apparatus for reproducing data recorded on a recording medium for each recording unit, with a first recording area for main data and a second recording area for auxiliary data having a predetermined size as one recording unit. There,
Detecting means for detecting that image data is recorded in the second recording area;
When image data is recorded in the second recording area, an image related to the image data recorded in the first recording area and an image related to the image data recorded in the second recording area A reproduction apparatus comprising: reproduction list generation means for generating a reproduction list to be displayed on the same screen. Reproducing means for reproducing the reproduction list and the image data recorded in the first and second recording areas from the recording medium;
Control means for controlling the reproduction operation by the reproduction means to display on the same screen the images related to the image data recorded in the first recording area and the second recording area based on the reproduction list. The playback apparatus according to claim 8.   When the difference between the shooting time of the image data recorded in the first recording area and the shooting time of the image data recorded in the second recording area is within a predetermined range, the playlist generating means The reproduction apparatus according to claim 8 or 9, wherein a reproduction list for displaying the image data recorded in the second recording area on the same screen is generated.   When the distance between the first recording area and the second recording area on the recording medium is within a predetermined range, the reproduction list generating means displays the image data recorded in the first and second recording areas on the same screen. The reproduction apparatus according to claim 8, wherein a reproduction list to be displayed is generated.   12. The reproducing apparatus according to claim 8, wherein the reproduction list generating unit generates the reproduction list so that the image data recorded in the second recording area is displayed for a predetermined time or more. .   13. The playback apparatus according to claim 8, wherein the playlist generation unit assigns a file name to the generated playlist different from that of other playlists already recorded on the recording medium. .   14. A reproducing apparatus according to claim 8, wherein the recording medium is a disk-shaped recording medium. A recording method for recording data on a recording medium for each recording unit, with a first recording area for main data and a second recording area for auxiliary data having a predetermined size as one recording unit,
When the second image data related to the first image data recorded in the first recording area is recorded in the second recording area, the image related to the first image data and the second image data are recorded. A recording method comprising: a reproduction list generation step of generating a reproduction list for displaying an image related to the image data on the same screen; and a recording step of recording the generated reproduction list on the recording medium. A reproduction method for reproducing data recorded on a recording medium for each recording unit, with the first recording area for main data and the second recording area for auxiliary data having a predetermined size as one recording unit. There,
A detection step of detecting that image data is recorded in the second recording area;
When image data is recorded in the second recording area, an image related to the image data recorded in the first recording area and an image related to the image data recorded in the second recording area And a playlist generation step of generating a playlist to be displayed on the same screen.   15. A program that can be executed by an information processing apparatus, and that causes the information processing apparatus that has executed the program to function as the playback apparatus according to claim 8.   A program executable by an information processing apparatus, comprising program code for realizing the reproduction method according to claim 16.   A storage medium readable by an information processing apparatus, wherein the program according to claim 18 or 17 is stored.

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