JP3763304B2 - Playback apparatus and playback method - Google Patents

Description

[0001]
  The present invention relates to a CD-I system.Playback apparatus and playback methodAbout.
[0002]
[Prior art]
The CD-I system is a system that can record image data and audio data and can perform processing interactively with a user. The CD-I system can be used for various services. For example, a restaurant has different menus for breakfast, lunch and dinner. If an image and explanation of the cooking menu are recorded on the CD-I disc, a cooking menu screen can be displayed at the time of breakfast, lunch and dinner. And a user can display each dish interactively and can know the contents.
[0003]
When producing such a CD-I disc, it is conventionally necessary to develop a dedicated application program for each disc. That is, for example, in the case of a CD-I disc of a restaurant menu, a dedicated application program that meets such requirements has been created. This application program runs on a real-time operating system for CD-I. Then, image data and audio data such as a cooking menu image and its description are taken in, and these image data and audio data are managed and edited by this dedicated application program.
[0004]
[Problems to be solved by the invention]
CD-I is basically a read-only recording medium. Therefore, conventionally, it is difficult for a user to create a program or re-edit the program. For example, in a restaurant menu, a menu limited by the sales location may be prepared, or a special menu for the day may be prepared. When the cooking menu is changed in this way, it is desired that the user can easily edit the program and cope with it.
[0005]
Conventionally, when a CD-I disc is developed, a dedicated application program corresponding to the use must be developed for each disc as described above. Therefore, there is a problem that it takes a long time to develop the disc. That is, the CD-I system operates on a dedicated real-time operating system, and conventionally, it is necessary to develop an application program on the real-time operating system. Furthermore, in CD-I, for error correction coding, it is expanded into frames and interleaved, so it is indispensable to simulate the developed program with an image on a disk. When a dedicated application program is developed for each disk, debugging in such a simulation is very difficult.
[0006]
  Therefore, an object of the present invention is to reproduce files recorded on an optical disc in an arbitrary order.Playback apparatus and playback methodIs to provide.
[0008]
[Means for Solving the Problems]
  In order to solve the above-described problem, the first invention includes a first recording area in which a plurality of files including at least video data are recorded;
  A second recording area that is read before the first recording area and in which a management program including a plurality of scenario files for reproducing an arbitrary file from the plurality of files in an arbitrary order is recorded;
  In a playback apparatus for playing back using a recording medium having
  A scenario reproduction mode for reproducing a recording medium based on a management program read from the second recording area; and a direct reproduction mode for reproducing a selected file among a plurality of files recorded on the recording medium. Show icon for selectionLet,
  If the icon for selecting the scenario playback mode is selected, at least the scenario name is displayed.Let, According to the scenario name selected from the displayed scenario namesAgainLivingLet,
  When the icon for selecting the direct playback mode is selected, multiple files recorded on the recording mediumScreen showingEach as a small screenLetPlays back the file corresponding to the selected small screen among the displayed small screens among the multiple files recorded on the recording mediumMake
  This is a playback device characterized by the above.
[0009]
  The second invention is a first recording area in which a plurality of files including at least video data are recorded;
  A second recording area that is read before the first recording area and in which a management program including a plurality of scenario files for reproducing an arbitrary file from the plurality of files in an arbitrary order is recorded;
  In a reproducing method of a recording medium having
  A scenario reproduction mode for reproducing a recording medium based on a management program read from the second recording area; and a direct reproduction mode for reproducing a selected file among a plurality of files recorded on the recording medium. Show icon for selectionLet,
  If the icon for selecting the scenario playback mode is selected, at least the scenario name is displayed.Let, According to the scenario name selected from the displayed scenario namesAgainLivingLet,
  When the icon for selecting the direct playback mode is selected, multiple files recorded on the recording mediumScreen showingEach as a small screenLetPlays back the file corresponding to the selected small screen among the displayed small screens among the multiple files recorded on the recording mediumMake
  This is a reproduction method characterized by the above.
[0010]
In the present invention, a scene file and a management editing program for managing and editing the scene file are recorded on the CD-I disc. With this management editing program, the user can easily edit the order and effects of each scene.
[0011]
Also, by using this management editing program, it is not necessary to develop an application program for each disk when creating a CD-I disk, and a CD-I disk can be created easily in a short time.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described in the following order.
a. Overview of the CD-I system
b. Overview of CD-I player
c. Disc overview
d. Operation explanation
e. Explanation of each screen
[0013]
a. Overview of the CD-I system
First, the CD-I system will be described. On the CD-I disc, in addition to audio data, data such as image data (natural images, animation, computer graphics data, etc.), text data, computer programs, etc. are recorded together.
[0014]
Various specifications are predetermined for the CD-I disc. That is, physical characteristics such as the size, refractive index, and track pitch of the disk, optical characteristics, and electrical characteristics are made equal to those of a general music CD (CD-DA). In a CD-I disc, recording and reproduction are performed in units of blocks (sectors) consisting of 98 frames. The size of this block corresponds to a general CD subcode block.
[0015]
Forms of blocks include form 1 and form 2. As shown in FIG. 1A, Form 1 has a 12-bit synchronization bit, a 4-byte header, and an 8-byte subheader in order from the top. In this case, the header indicates an address and the like, and the subheader indicates a file number, a channel number, and a sub mode (a distinction between frames 1 and 2) by 2-byte data, as shown in FIG. 1C. is there.
[0016]
Furthermore, following the subheader, 2048 bytes of user data, 4 bytes of error detection code, 172 bytes of P parity code, and 104 bytes of Q parity code make error correction even more powerful than CD-DA discs. It has become. Therefore, it is suitable for data that cannot be interpolated during reproduction, such as text data and programs.
[0017]
In form 2, as shown in FIG. 1B, as in form 1, it has a synchronization bit, a header, and a subheader, followed by user data. This user data is 2324 bytes, and finally 4 bytes. It has a spare area and no error correction code. Therefore, Form 2 is suitable for data that can be interpolated during reproduction of audio data, image data, and the like.
[0018]
The audio data has the following four modes. That is, in the first mode, the audio data is written with a standard equal to the current CD, that is, the sampling frequency is 44.1 kHz and the number of quantization bits is 16 bits. Therefore, according to this mode, a sound quality equal to that of the current CD can be obtained.
[0019]
The second, third, and fourth modes are called A, B, and C modes, respectively, and audio signals are compressed and recorded by ADPCM (adaptive differential PCM). In the A mode, the sampling frequency is 37.8 kHz, the number of bits is 8 bits, in the B mode, the sampling frequency is 37.8 kHz, the number of bits is 4, and in the C mode, the sampling frequency is 18.9 kHz, and the number of bits is 4 bits. . Therefore, according to the A to C modes, the sound quality is inferior in order, but the recording and reproduction time can be increased to 2, 4, and 8 hours.
[0020]
In the case of image data, there are the following three modes. That is, the first mode is used when the image data is natural image data. In this mode, the luminance signal and the color signal are digitized at 8 bits at 7.6 kHz and 3.8 kHz, respectively. Each data is compressed into 4 bits and written. In the second mode, it is used when the image is animation data. In this mode, the original data is compressed and recorded using a run-length code. In the third mode, R, G, and B graphics that use red, green, and blue absolute values and a CLUT (color lookup table) that uses a color correspondence table are used. The CLUT has three modes of 8 bits, 7 bits, and 4 bits, and a necessary color can be selected from 16 million colors.
[0021]
A TOC (Table of Contents) is provided in the lead-in of the CD-I disc, and whether or not the disc is a CD-I disc can be identified from the TOC information.
[0022]
In CD-I, the specifications and operating system of the CPU used for control are determined in advance. A 68000 system CPU is used as the control CPU. A dedicated real-time operating system is used as the operating system.
[0023]
b. Overview of CD-I player
FIG. 2 shows an example of a CD-I player to which the present invention is applied. In FIG. 2, 10 is a disk, and this disk 10 is a CD-I disk. On this CD-I disc 10, a scene file and a program for managing and editing the scene file are recorded. The disk 10 will be described in detail later.
[0024]
Reference numeral 21 denotes a spindle motor, and reference numeral 22 denotes a spindle servo circuit. The spindle servo circuit 22 controls the rotation of the spindle motor 21 at a constant linear velocity. Reference numeral 23 denotes a sled servo circuit, 24 a tracking servo circuit, 25 a slide feed mechanism having a linear motor, for example, and 31 an optical pickup. The optical pickup 31 is supported by the slide feed mechanism 25, and the output signal of the sled servo circuit 23 is supplied to the slide feed mechanism 25 so that the pickup 31 is moved in the radial direction of the disk 10 and the target track of the disk 10 is removed. The signal is played back. At this time, a tracking servo signal is supplied from the tracking servo circuit 24 to the optical pickup 31, and tracking servo for the target track is performed.
[0025]
Reference numeral 27 denotes a joy card, 28 denotes various operation keys, and 29 denotes a system controller. In this case, the joy card 27 is provided with two trigger buttons 27A and 27B, for example, as shown in FIG. Further, as shown in FIG. 4, for example, the main body is provided with a return key 28R and a forward key 28F for one track, a stop key 28S, and a play / pause key 28P.
[0026]
The system controller 29 is constituted by a microcomputer, and accesses necessary data or control signals between the system controller 29 and each circuit such as the servo circuits 22 to 24. The system controller 29 has a RAM 29M backed up by a battery 47.
[0027]
33 is a CD decoder having an EFM demodulating circuit and an error correcting circuit, 34 is a CD-ROM decoder having a descrambling circuit and an error correcting circuit for a CD-ROM disc, 35 is an ADPCM decoder, and 36 is an A / D converter. It is.
[0028]
41 is a CPU (for example, 68000 system) for controlling the CD-I system, 42 is a master controller, 43 is a ROM in which an operating system is written, 44 is a work area RAM, 45 is a non-volatile RAM, Reference numeral 46 denotes a calendar circuit for setting a calendar and time. These circuits 42 to 46 are connected to the CPU 41 through the system bus 49. The nonvolatile RAM 45 is backed up by a battery 47 together with the clock circuit 46.
[0029]
Reference numeral 48 denotes an external pointing device interface circuit, which is a mouse interface circuit in this example. The mouse 52 is connected to the system bus 49 through the connector 51 and the mouse interface circuit 48. Further, 61A and 61B are display controllers, 62A and 62B are video RAMs, 63 is a video synthesizer, 65 is a display means, and in this example is a liquid crystal display.
[0030]
A signal is reproduced from the track of the disk 10 by the pickup 31, and this reproduced signal is supplied to the CD decoder 33 through the amplifier 32 and data subjected to EFM demodulation and error correction is taken out.
[0031]
When ADPCM data is being reproduced, the data from the decoder 33 is decoded into audio data as it is supplied to the ADPCM decoder 35 through the CD-ROM decoder 34, and the decoded audio data is The signal is supplied to the D / A converter 36 and converted into an analog audio signal, and is taken out to the output terminal 38.
[0032]
When the image data is being reproduced, the data from the decoder 33 is supplied to the display controller 61A or 61B as it is through the CD-ROM decoder 34 and the decoding process corresponding to the mode of the image data is performed. It is written in the video RAM 62A or 62B.
[0033]
The image data in the RAMs 62A and 62B is read out by the RAM controllers 61A and 61B corresponding to the operation position of the liquid crystal display 65, and the read out image data is selected or synthesized by the synthesizer 63 and D / A converted. Then, it is supplied to the liquid crystal display 65 through the drive circuit 64 and displayed on the liquid crystal display 65.
[0034]
When text data or a program is reproduced, the data from the decoder 33 is supplied to the CD-ROM decoder 34, and the original text data or program subjected to descrambling and error correction is taken out. The text data or program is executed by the CPU 41.
[0035]
c. Disc overview
FIG. 5 shows an outline of a CD-I disc 10 to which the present invention is applied. The physical shape of the CD-I disc 10 is the same as that of a normal music CD. A recording track is formed in a spiral on the CD-I disc 10. Data is recorded along this track.
[0036]
In the innermost lead-in of the disk 10, the catalog data 2 called TOC (Table of Contents) is recorded. In this TOC, information on which part of the disc 10 the management editing program area 3 is arranged and in which part the scene file area 4 is arranged is recorded.
[0037]
In the scene file area 4, as shown in FIG. 5B, a plurality of scene files F1, F2, F3... (Scene File 1, Scene File 2, Scene File 3,...) Are included. The scene files F1, F2, F3,... Are composed of scene image data (Picture Data) as a unit and audio data (Audio Data) related to the image data. Here, the image data is one or a plurality of still images. The maximum number of scene files is limited by the recording capacity of the disk 10. For high quality images (first mode), the maximum number of scene files is about 1500.
[0038]
As shown in FIG. 6A, the management editing program has a current pointer (Current Pointer), a direct menu pointer (Direct Menu Poiter), an auto start time table (Auto Start Time Table), and a scenario table (Scenario Table). .
[0039]
Direct menu pointers (DP1, DP2, DP3,...) Are pointers indicating the addresses of the scene files F1, F2, F3,. Therefore, using this direct menu pointer, each scene file F1, F2, F3,... Can be directly accessed.
[0040]
The scenario table (Scenario Table 1, Scenario Table 2, Scenario Table 3,...) Is a table in which a scenario indicating the order of playback of the scene files F1, F2, F3,. It is. Information such as a scenario name, an effect of each scenario, audio on / off, repeat, auto play, etc. is arranged at each head d1 of the scenario files T1, T2, T3. In the subsequent portions d2, d3, d4,..., Pointers indicating the addresses of scene files to be reproduced are arranged in order.
[0041]
An auto start time table (Auto Start Time Table) A1 is a table for registering time when an automatic scenario is executed at a predetermined time. The time of the auto start time table A1 and the time TM1 of the clock circuit 46 are compared, and when the times match, the corresponding scenario is executed.
[0042]
As a scenario table scenario file, at least a scenario “ALL” is prepared. This “ALL” scenario is a scenario in which each scene is reproduced in order. Other scenarios are arbitrarily created for each disk.
[0043]
d. Operation explanation
When such a CD-I disc 10 is loaded into a CD-I player as shown in FIG. 2, first, the optical pickup 31 accesses the TOC 2 on the innermost circumference of the disc. The position information of the management editing program area 3 is obtained from the TOC 2, and the optical pickup 31 is accessed at the position of the management editing program area 3. Then, the management editing program is activated.
[0044]
When the management editing program is activated, the scenario file on the disk 10 is first read into the RAM 44. Further, as will be described later, the scenario file edited by the user is stored in the nonvolatile RAM 45.
[0045]
When the management editing program 3 is activated, an opening screen 51 is first displayed as shown in FIG. Then, the main menu 52 is displayed. In the main menu 52, the title name of the disc and icons indicating direct play, arbitrary scenario playback, scenario editing, program end, and the like are displayed.
[0046]
When a direct play icon is clicked on the main menu screen 52, a direct menu mode 53 is displayed in which a list of scenes recorded on the disc is displayed. When a desired scene is selected from the menu, a view mode 54 for viewing the scene is displayed. It becomes.
[0047]
When scenario playback is clicked on the main menu 52, the scenario playback mode 55 is entered. When a desired scenario is selected in this scenario playback mode 55, a scenario playback display screen 56 is displayed.
[0048]
When scenario editing is clicked on the main menu 52, the scenario editing mode 57 is entered. From this scenario edit mode 57, a scenario edit screen 58 is displayed. When the preview is set, a view screen 59 is displayed. When the save scene is clicked on the file screen 60, the edited scenario is saved in the nonvolatile RAM 45.
[0049]
e. Explanation of each screen
Next, details of each screen will be described. FIG. 8 shows an opening screen and a main menu screen. In the main menu, icons 101, 102, 103, and 104 are displayed. The icon 101 is used to go to a direct reproduction screen for selecting and reproducing any one scene among all scenes. The icon 102 is for going to a scenario reproduction screen for reproducing an arbitrary scenario. The icon 103 is for going to the scenario editing screen. The icon 104 is for ending.
[0050]
When the icon 101 is clicked, a direct playback screen as shown in FIG. 9 is displayed. In this direct playback screen, the first small screens 111A, 111B, 111C,... Of each scene are arranged. When an appropriate one of these small screens 111A, 111B, 111C,... Is clicked, a scene corresponding to the screen is reproduced. Note that 112 is an icon for scrolling the screen, and 113 is an icon for returning to the immediately preceding screen.
[0051]
In FIG. 8, when the icon 102 is clicked, a scenario playback screen as shown in FIG. 10 is displayed. On the scenario playback screen, scenario names 121A, 121B, 121C,... Are displayed. When an appropriate one of the scenario names 121A, 121B, 121C... Is clicked, the scenario playback is started. That is, in the order of this scenario, each scene is played in order with screen effects added as necessary.
[0052]
Among these scenario names, scenario names 121A, 121B, and 121C with decorations on the background are scenarios prepared by the creator of the disc, and this scenario is recorded on the disc 10 in advance. On the other hand, the scenario names 121D and 121E are scenarios edited by the user, and this scenario is stored in the nonvolatile RAM 45. In addition, a letter 124 of “A” at the head of the scenario name indicates that the scenario is an auto playback setting. In the auto playback setting, when a time is set, playback starts from that time. Note that 122 is an icon for scrolling the screen, and 123 is an icon for returning to the immediately preceding screen.
[0053]
On this scenario playback screen, the button 27A of the pointing device advances to the next scene, the playback is interrupted with the button 27B, and a control panel is displayed below the playback screen as shown in FIG. Icons 131, 132, 133, 134, 135, 136, and 137 are displayed on the control panel. The icon 131 is for audio playback on / off. The icon 132 is for turning the cursor pointer on / off. The icon 133 is for returning to the head of the immediately preceding scene. The icon 134 indicates the sequence number of the current scene. The icon 135 is for proceeding to the next scene. The icon 136 is for playing back an arbitrary scene using the direct menu, and after playback, the icon 136 is returned to the beginning of the interrupted scene. The icon 137 is for ending reproduction and returning to the main menu.
[0054]
When the icon 103 is clicked in FIG. 8, a scenario editing screen as shown in FIG. 12 is displayed. On the scenario editing screen, scenario names 141A, 141B, 141C,... Are displayed. Scenario names 141A, 141B, and 141C with decorations in the background are recorded in advance on the disk 10. Scenarios with no decoration scenario names 141D and 141E are stored in the nonvolatile RAM 45. A letter 144 of “A” at the beginning of the scenario name indicates that the scenario is an auto playback setting. Reference numeral 142 is an icon for scrolling the screen, and 143 is an icon for returning to the immediately preceding position.
[0055]
When a scenario to be edited is clicked from among the scenario names 141A, 141B, 141C,..., A scenario editing screen as shown in FIG. 13 is displayed.
[0056]
Icons 151 to 167 are displayed on the scenario editing screen. Icons 151 and 152 are for automatically starting scenario playback at a specified time. The icon 153 is for audio playback on / off. The icon 154 is for turning the cursor pointer on / off. The icon 155 is for repeat playback. The icon 156 is for reproducing only once. Icons 157 to 160 are for scenario effects. That is, the icon 157 is used to set the vertical scroll, the icon 158 is used for fading in, the icon 159 is used for cutting in, and the icon 160 is used for setting the dissolve. The icon 161 is set for manual playback, and the icon 162 is set for automatic playback. The icon 163 is for setting a time between scenes. The icon 164 is for saving a scenario. The icon 165 is for displaying a scenario board. The icon 166 is for deleting the scenario file. The icon 167 is for returning to the main menu.
[0057]
In FIG. 13, when the icon 165 is clicked, a scenario board as shown in FIG. 14 is displayed. On the upper stage of the scenario board, a file name 171 of the scenario file before editing and a board 172 displaying scenes in the scenario file before editing in the playback order are displayed. In the lower row, an edited scenario name 173 and a board 174 displaying scenes in the edited scenario in the order of playback are displayed. The user can create a scenario by selecting a desired scene from the scenario before editing and arranging it on the board 174 in a desired order. An icon 175 is for cutting the scene, and an icon 176 is for confirming the playback of the scene. The icon 177 is for returning to the previous screen.
[0058]
When the scene order is created on the scenario board shown in FIG. 14 and the icon 177 is clicked, the scenario editing shown in FIG. 13 is returned to the screen. Here, when the icon 164 is clicked, the edited scenario is stored in the nonvolatile RAM 45.
[0059]
The created scenario is reproduced as described above on the scenario reproduction screen as shown in FIG. This scenario is stored in the nonvolatile RAM 45. Therefore, when the same disk 10 is loaded next time, the scenario edited last time can be reproduced again.
[0060]
g. Disc manufacturing apparatus and method
FIG. 15 shows an apparatus for creating a disc to which the present invention is applied.
[0061]
In FIG. 15, 251 is a computer for creating a disk, 252 is a fixed disk device as an external storage device, 253 is an image scanner, 254 is a video playback device, 255 is a computer graphics generator, 256 is a digital audio tape recorder, Reference numeral 257 denotes a write-once disc recording device. The write-once disc recording device 257 changes the disc reflectivity with a laser beam to create a disc conforming to the CD-I specifications. Image data as a material is captured by an image scanner 253, a video playback device 254, a computer graphics generation device 255, and the like. Audio data is captured by the digital audio tape recorder 256. The recorded data of the disk is developed on the fixed disk 252. It is then expanded into a disk image and simulated. Then, a write-once disc recording device 257 creates a CD-I disc.
[0062]
FIG. 16 shows a disc creation procedure. As shown in FIG. 16, first, video material is captured by the image scanner 253, video playback device 254, computer graphics generation device 255, etc., and audio material is captured by the digital audio tape recorder 256 (step 201). Then, a scene file is created from the image data and the corresponding audio data (step 202). In addition, a scenario file is created as necessary (step 203). The “ALL” scenario is always created. The plurality of scene files, scenario files, and management editing program (created in step 204) are aligned on the fixed disk 252 and developed into a disk image (step 205). That is, according to the CD-I disk format, interleaving is applied and an error correction code is added. Then, the disk image data is simulated (step 206). When the simulation is completed, a CD-I disc is created by the write-once disc recording device 257 (step 207).
[0063]
【The invention's effect】
  According to the present invention, since a plurality of files recorded on the optical recording medium can be reproduced based on the management editing program, the files recorded on the optical disc can be reproduced in an arbitrary order.
[Brief description of the drawings]
FIG. 1 is a schematic diagram used for explaining a CD-I system.
FIG. 2 is a block diagram of an example of a CD-I player to which the present invention is applied.
FIG. 3 is a plan view used for explaining an example of a CD-I player to which the present invention is applied;
FIG. 4 is a plan view used for explaining an example of a CD-I player to which the present invention is applied.
FIG. 5 is a plan view used for explaining an optical disc to which the present invention is applied.
FIG. 6 is a schematic diagram used for explaining an optical disc to which the present invention is applied.
FIG. 7 is an explanatory diagram used for explaining the operation of one embodiment of the present invention.
FIG. 8 is a schematic diagram used for explaining one embodiment of the present invention.
FIG. 9 is a schematic diagram used for explaining one embodiment of the present invention;
FIG. 10 is a schematic diagram used for explaining one embodiment of the present invention;
FIG. 11 is a schematic diagram used for explaining one embodiment of the present invention;
FIG. 12 is a schematic diagram used for explaining one embodiment of the present invention.
FIG. 13 is a schematic diagram used for explaining one embodiment of the present invention.
FIG. 14 is a schematic diagram used for explaining one embodiment of the present invention;
FIG. 15 is a block diagram used for explaining creation of a CD-I disc to which the present invention is applied;
FIG. 16 is a flowchart used for explaining creation of a CD-I disc to which the present invention is applied;
[Explanation of symbols]
10 discs
41 CPU
45 Nonvolatile RAM

Claims (4)

A first recording area in which a plurality of files including at least video data are recorded;
A second recording area that is read prior to the first recording area and in which a management program including a plurality of scenario files for reproducing an arbitrary file from the plurality of files in an arbitrary order is recorded. In a playback device for playback using a recording medium having
A scenario playback mode for playing back the recording medium based on the management program read from the second recording area, and a direct for playing back a selected file among a plurality of files recorded on the recording medium to display the icon for selecting a reproduction mode,
If the icon for selecting the scenario playback mode is selected, to display at least scenario name, then play in a predetermined order in accordance with the selected scenario name from among the displayed scenario name,
When the icon for selecting the direct playback mode is selected, the screens indicating the plurality of files recorded on the recording medium are each displayed as a small screen, and the above-mentioned recorded on the recording medium reproducing apparatus characterized by causing play the file corresponding to the small screen selected among the plurality of small screens which are the display of the plurality of files.   2. The playback apparatus according to claim 1, wherein the displayed scenario name is displayed in a manner capable of distinguishing whether or not the scenario is a scenario prepared by a recording medium creator. A first recording area in which a plurality of files including at least video data are recorded;
A second recording area that is read prior to the first recording area and in which a management program including a plurality of scenario files for reproducing an arbitrary file from the plurality of files in an arbitrary order is recorded. In a method for reproducing a recording medium having:
A scenario playback mode for playing back the recording medium based on the management program read from the second recording area, and a direct for playing back a selected file among a plurality of files recorded on the recording medium to display the icon for selecting a reproduction mode,
If the icon for selecting the scenario playback mode is selected, to display at least scenario name, then play in a predetermined order in accordance with the selected scenario name from among the displayed scenario name,
When the icon for selecting the direct playback mode is selected, the screens indicating the plurality of files recorded on the recording medium are each displayed as a small screen, and the above-mentioned recorded on the recording medium reproducing method characterized by causing play the file corresponding to the small screen selected among the plurality of small screens which are the display of the plurality of files.   4. The reproducing method according to claim 3, wherein the displayed scenario name is displayed in a manner capable of distinguishing whether the scenario is a scenario prepared by a recording medium creator.

Images