JP2880981B2 - Method and apparatus for recording data on optical disc - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a method and apparatus for recording data on an optical disc, and more particularly, to a method and apparatus for recording data on an optical disc for recording a menu object together with a title.

[0002]

2. Description of the Related Art As a generally known optical disk, a compact disk, so-called CD, has already been developed. Such an optical disk records and reproduces movie data over a long period of time in terms of its storage capacity. It has been difficult. From this point of view, optical discs that can record movie data at high density have been studied,
Is being developed.

An optical disk having such a large storage capacity can record not only a movie with a single title but also a movie with a plurality of titles, and it is expected that the movie can be reproduced in various modes. You. One example of various aspects of playback is that not only does the movie play without dubbing English, but also the language,
For example, English is dubbed to another language, for example, Japanese, and the original language is used as a sub-picture, for example,
It is expected that English will be displayed as text and the movie will be reproducible. As another example, it is expected that the user can select not only a single story but also a plurality of stories for a movie story. That is, when reproducing a movie having a certain title, it is expected that it is possible to select a story of the movie from which the cruel scenes have been eliminated, according to the user.

[0004]

In order to reproduce movie data in various modes as described above, it is necessary to manage reproduction data relating to movie data and the like on an optical disc in advance so as to be selectable, and this requirement is satisfied. In order to do so, it is required that selection information regarding selection of reproduction data be recorded on an optical disc as a recording medium.

Conventional optical discs such as CDs are defined in the ISO standard on the assumption that they have a storage capacity of at most 4 GB (232 bytes). In fact, most CDs
Has a storage capacity of less than 1 GB. Therefore, it is difficult to manage data having a data capacity of 4 GB or more. Therefore,
In an optical disk having a large storage capacity developed in recent years, it is desired to develop a method of efficiently managing data such as movie data having a storage capacity of 4 GB or more and reproducing the data quickly in various modes. ing.

An object of the present invention is to provide a recording method and an apparatus for recording, as menus, selectable reproduction data together with selection information capable of efficiently selecting the selectable reproduction data on an optical disk.

[0007]

According to the present invention, a pack for encoding video, audio, and sub-picture data and storing the encoded data in a video, audio, and sub-picture pack, and storing control information of these data in a control pack, respectively. A step of preparing an object to be played, comprising a pack sequence related to the combination of packs; a step of generating management information of the object; and a step of recording the management information and the object on an optical disc. In the method for recording data on an optical disc to be recorded, the objects include a video object corresponding to a title capable of selecting audio and sub-picture, a menu object for title selection, a sub-picture and a menu object for audio selection. , The title selection menu The object includes a plurality of first menus in which items for selecting a title are displayed in different languages, each of which includes a plurality of first menus that can be selected corresponding to each language. Indicates that the selection items for selecting the sub-picture and audio are displayed in different languages, respectively.
A first menu, wherein the management information includes attribute information of data constituting the video object, attribute information of data constituting the first and second menus, and first and second menu selection information; The selection information is
The number of menus corresponding to the language included in the menu object for title selection and each of the
A plurality of search pointers including a language code specifying a language of the menu and an address specifying reproduction information of the first menu corresponding to the language, wherein the reproduction information of the first menu is a first menu in the video object. The second menu selection information includes a start address of data, and the second menu selection information includes a menu for selecting the sub-picture and audio.
The number of menus corresponding to the language included in the object, each of which is composed of a plurality of search pointers including a language code specifying a language of the second menu and an address specifying reproduction information of the second menu corresponding to the language; A method for recording data on an optical disc is provided, wherein the reproduction information of the second menu includes a start address of second menu data in the video object. Further, according to the present invention, a pack generating means for encoding video, audio, and sub-picture data and storing them in video, audio, and sub-picture packs, and storing control information of these data in a control pack, Recording data on an optical disc composed of a unit for preparing an object to be played, comprising a pack sequence according to the combination, a unit for generating management information of the object, and a unit for recording the management information and the object on the optical disk In the apparatus, the objects include a video object corresponding to a title from which audio and sub-pictures can be selected, a menu object for title selection, a menu object for sub-pictures and audio selection, and the menu for title selection. Objects, Thailand Appears in the field are different languages for selecting Le includes a first menu of a plurality selectable each of which corresponds to each language, also, the menu for the sub-picture and audio selection
The object includes a second menu in which selection items for selecting a sub-picture and an audio are displayed in different languages, and the management information includes attribute information of data constituting the video object, and first and second menus. And the first and second menu selection information, wherein the first menu selection information includes the number of menus corresponding to the language included in the title selection menu object and each of the first and second menu selection information. It is composed of a plurality of search pointers including a language code for specifying a language of one menu and an address for specifying reproduction information of the first menu corresponding to the language, and the reproduction information of the first menu is the first information in the video object. The second menu selection information includes a start address of menu data, and the second menu selection information includes A plurality of searches including the number of menus corresponding to the language included in the menu object for audio selection, each including a language code specifying a language of the second menu and an address specifying reproduction information of the second menu corresponding to the language. Composed of pointers,
An apparatus for recording data on an optical disc is provided, wherein the reproduction information of the second menu includes a start address of second menu data in the video object.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an optical disc reproducing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an optical disc reproducing apparatus for reproducing data from an optical disc according to an embodiment of the present invention. FIG. 2 is a block diagram of a disc drive unit for driving the optical disc shown in FIG. FIG. 3 shows the structure of the optical desk shown in FIG. 1 and FIG.

[0010] As shown in FIG.
Key operation / display unit 4, monitor unit 6, and speaker unit 8
Is provided. Here, the user operates the key operation / display unit 4
The recorded data is reproduced from the optical disk 10 by operating. The recording data includes video data, sub-video data, and audio data, which are converted into a video signal and an audio signal. The monitor unit 6 displays an image by an audio signal, and the speaker unit 8 generates sound by the audio signal.

As already known, the optical disk 10 has various structures. The optical disk 10 includes, for example, a read-only disk on which data is recorded at a high density, as shown in FIG. As shown in FIG. 3, the optical disk 10 includes a pair of composite layers 18 and an adhesive layer 20 interposed between the composite disk layers 18. Each of the composite disk layers 18 includes a transparent substrate 14 and a recording layer, that is, a light reflecting layer 16. This disk layer 18 is arranged such that the light reflecting layer 16 is in contact with the surface of the adhesive layer 20. This optical disc 10 has a central hole 22
Are provided around the center hole 22 on both sides thereof, and a clamping area 24 for holding the optical disc 10 at the time of rotation thereof is provided. When the disk 10 is loaded into the optical disk device, the spindle of the spindle motor 12 shown in FIG. 2 is inserted into the center hole 22. Is done.

As shown in FIG. 3, the optical disk 10 is placed around a clamping area 24 on both sides thereof.
Has an information recording area 25 in which information can be recorded. Each information recording area 25 has an outer peripheral area in a lead-out area 26 where information is not normally recorded, and an inner peripheral area in contact with the clamping area 24 also has a lead-in area 27 where information is not normally recorded. The data recording area 28 is defined between the lead-out area 26 and the lead-in area 27.

In the recording layer 16 of the information recording area 25, usually, tracks are continuously formed in a spiral shape as areas for recording data, and the continuous tracks are divided into a plurality of sectors. Data is recorded in the standard. Data recording area 28 of information recording area 25
Is an actual data recording area in which management data, main image data, sub-image data, and audio data are similarly recorded as pits (that is, changes in physical state) as described later. In the read-only optical disk 10,
A pit row is previously formed on the transparent substrate 14 by a stamper,
A reflective layer is formed by vapor deposition on the surface of the transparent substrate 14 on which the pit rows are formed, and the reflective layer is formed as the recording layer 16. In the read-only optical disc 10, no groove is normally provided as a track, and a pit row formed on the surface of the transparent substrate 14 is defined as a track.

As shown in FIG. 1, the optical disk 10 further includes a disk drive unit 30 and a system CP.
It comprises a U section 50, a system ROM / RAM section 52, a system processor section 54, a data RAM section 60, a video decoder 58, an audio decoder section 60, a sub-picture decoder section 62, a D / A and a data reproducing section 64.

As shown in FIG.
Is a motor drive circuit 11, a spindle motor 12,
An optical head 32 (that is, an optical pickup), a feed motor 33, a focus circuit 36, a feed motor drive circuit 37, a tracking circuit 38, a head amplifier 40, and a servo processing circuit 44 are provided. Optical disk 10
Is mounted on a spindle motor 12 driven by a motor drive circuit 11, and is rotated by the spindle motor 12. An optical head 32 for irradiating the optical disk 10 with a laser beam is placed under the optical disk 10. The optical head 32 is mounted on a guide mechanism (not shown). Feed motor drive circuit 37
Is provided to supply a drive signal to the feed motor 33. The motor 33 is driven by a drive signal to move the optical head 32 in the radial direction of the disk 10. The optical head 32 includes an objective lens 34 facing the optical disc 10. The objective lens 34 is
It is moved along the optical axis according to the drive signal supplied from the cascade circuit 36.

To reproduce data from the above-described optical disk, the optical head 32 irradiates the optical disk 10 with a laser beam via the objective lens 34. The objective lens 34 is finely moved in the radial direction of the disk 10 according to the drive signal supplied from the tracking circuit 38. Also,
The objective lens 34 is focused on the recording layer 1 of the disc 10.
In accordance with the drive signal supplied from the focusing circuit 36 so as to be positioned at 6, the optical pickup is slightly moved along the optical axis direction. As a result, the laser beam forms a minimum beam spot on the spiral track (ie, pit row),
The track is tracked with a light beam spot. The laser beam is reflected from the recording layer 16 and returned to the optical head 32. The optical head 32 converts the light beam reflected from the optical disk 10 into an electric signal, and the electric signal is supplied from the optical head 32 to the servo processing circuit 44 via the head amplifier 40. In the servo processing circuit 44, a focus signal, a tracking signal, and a motor control signal are generated from the electric signal, and these signals are respectively converted into the focus circuit 3
6, the tracking circuit 38, and the motor drive circuit 11.

Accordingly, the objective lens 34 is moved along its optical axis and the radial direction of the optical disk 10, the focal point is located on the recording layer 16 of the optical disk 10, and the laser beam focuses the minimum beam spot on the spiral track. Form. Further, the spindle motor 12 is rotated at a predetermined rotation speed by the motor drive circuit 11. as a result,
The pit train by the light beam is tracked by the light beam, for example, at a constant linear velocity.

A control signal as an access signal is supplied to the servo processing circuit 44 from the system CPU 50 shown in FIG. In response to this control signal, the servo processing circuit 4
4 supplies a head movement signal to a feed motor drive circuit 37, which converts the drive signal to a feed motor 3
3 will be supplied. Therefore, the feed motor 33
Is driven, and the optical head 32 is moved in the radial direction of the optical disk 10.

Then, a predetermined sector formed on the recording layer 16 of the optical disk 10 is accessed by the optical head 32. The reproduction data is reproduced from the predetermined sector and supplied from the optical head 32 to the head amplifier 40,
The signal is amplified by the head amplifier 40 and output from the disk drive unit 30.

The output reproduced data is stored in the system RO.
M and a system processor unit 54 and a system processor unit 54 controlled by a program recorded in the RAM unit 52
Through the data RAM 56. The stored reproduction data is processed by the system processor unit 54 and classified into video data, audio data, and sub-picture data. The video data, audio data, and sub-picture data are processed by the video decoder unit 58 and the audio decoder unit 60, respectively. And output to the sub-picture decoder 62 for decoding. The decoded video data, audio data, and sub-picture data are converted into analog video signals, audio signals, and sub-picture signals by a D / A and reproduction processing circuit 64, and are also subjected to mixing processing to produce a video signal and sub-picture data. The signal is sent to the monitor 6,
Further, audio signals are supplied to the speakers 8 respectively.
As a result, an image is displayed on the monitor unit 6 by the video signal and the sub-video signal, and sound is reproduced from the speaker unit 8 by the audio signal.

The detailed operation of the optical disk apparatus shown in FIG. 1 will be described later in more detail with reference to a logical format of the optical disk 10 described below.

The data recording area 28 from the lead-in area 27 to the lead-out area 26 of the optical disk 10 shown in FIG. 1 has a volume and file structure as shown in FIG. This structure complies with a specific standard as a logical format, for example, micro UDF (micro UDF).
DF) and ISO9660.

As shown in FIG. 4, the volume and file structure has a hierarchical structure, and includes a volume management information area 70 and a file area 80 including a volume information file 82, a video title set 84 and / or an audio title set 86. It is composed of These areas are partitioned on the boundaries of logical sectors. In the volume management information area 70, the contents defined in the above standard are recorded. The file area 82 stores video data, audio data, and management data for managing these data. In other words, the video title set 84 stores video data, sub-picture data, and audio data, the audio title set 86 stores audio data, and the volume information file 82, the video title set 84, and the audio data. Management data on the title set 86 is stored.

The volume management information area 70 includes, for example,
It corresponds to a root directory defined according to micro UDF (micro UDF) and ISO9660, and describes a path table and a directory record. Video title set 84 and audio title set 86
Are located in a root directory, each of which has a directory name, and each video and audio title set 84,
86 is divided into a plurality of video or audio files 88, and each file 82, 88 has a maximum of 1 GB (230
Size). Here, the title sets 84 and 86 are defined as a set of at least one or more files 88, and are usually divided into ten files. Therefore, one title set 84, 86 is 1
It will have a size of GB or more, typically within 10G.

The volume information file 82 read out via the path table and the directory record described in the volume management information area 70 has an area shown in FIG. 5 similarly divided on the boundary of the logical sector.
More specifically, this volume information file 82
Is divided into two areas, that is, a management area 82-1 and a menu data area 82-2. The management area 82-1 is
It is composed of one file manager, three tables, and one table group to manage the entire file. The menu data area 82-2 is composed of one menu and one menu group in order to compose a menu screen with video, audio, sub-picture and the like. That is, in the management information area 82-1 of the volume information file 82, the volume information file manager (VMIFM) and the text information table 92 (TX
TIT), title set information search pointer table 93 (TSISPT), title set attribute table 9
4 (TSATRT) and title set menu program chain information block table group 95 (TS
MPGCIBTG) is prepared. In the data area 82-2 of the volume information file 82, a video object 96 (VOBVMM) for a volume menu is provided.
And a video object 97 (VOBTSM) for the menu of the title set from the first to the n-th. Video objects 96 (VOBVMM), 97
(VOBTSM) stores video, sub-picture, and audio data that make up a menu as described later.

The objects include menu video objects 96 and 97 serving as video data for reproducing the menu stored in the volume information file 82 and audio data for reproducing the menu. And audio objects as video data for reproducing the story of a certain title stored in the title sets 84 and 86, as will be described later, and various kinds of record titles. There is an audio object as audio data from which a song is to be reproduced.

Volume information file 82 (VMIF)
Has a file size of 1 G or less. With reference to the volume information file manager 91 (VMIFM) of the volume information file 82, title sets 84 and 86 are obtained.

Volume information file manager 91
(VMIFM) includes a volume information file management table 101 (VMIFMT), a title search pointer table 102 (TSPT), and a volume menu program chain information block table similarly partitioned on logical sector boundaries as shown in FIG. 104 (V
MMPGCIBT).

Volume information file management table 10
1 (VMIFMT) contains a volume information file 82
Information such as the identifier (VMIFID) of the volume information file 82 and its size, the start and end addresses of each table, and attribute information on the volume menu video object 96 (VOBVMM), that is, the volume menu file. Information indicating attributes of video, audio, sub-picture, and the like is described. Specifically, FIG.
As shown in the figure, the volume information file management table (V
MFMT) 101 includes a volume information file 82
(VMFID), the size of the volume information file expressed by the number of logical sectors (SZV
MIF), and a volume category (VMCAT) indicating a category such as whether or not the volume can be copied. In addition, the management table (VMIFM)
T) 101 includes a text information table (TXTIT)
92 start address (SATTXTIT), title set information search pointer table (TSISPT) 9
3 start address (SATSISPT), start address (SATSATRT) of title set attribute table (TSATRT) 94, title set menu program chain information block table group (T
(SMPGCIBTG) 95 start address (SAT
SMPGCIBTG) and the start address (SAVOBVMM) of the volume menu video object (VOBVMM) 96 are described.

Further, the volume information file management table (VMIFMT) 101 includes the last address (EAMVIFMT) of the volume information file management table (VMIFMT) 101 and the start address (SATSP) of the title search pointer table (TSPT) 102.
T), the start address (SAVMMPGCIBT) of the volume menu program chain block table (VMMPGCIBT) 104, and the volume menu program chain block table (VMMPGCI
BT) 104 last address (EAVMMPGCIB)
T) is described.

Further, the volume information file management table (VMIFMT) 101 includes a video attribute (VMMMATR) of the volume menu, for example, attribute information such as a video compression mode, the number of audio streams (VMMMAST) of the volume menu, and a volume attribute. Menu audio stream attribute (VMMAAT
R), for example, attribute information such as an audio encoding mode, and the number of sub-pictures in a volume menu (VMMNSPS)
T), sub-picture attribute of volume menu (VMMMSP
ATR), for example, attribute information such as an encoding mode of a sub-picture, and a sub-picture belonging palette (VMMS) of a volume menu.
PPLT) is described. In the volume information file management table (VMIFMT) 101, the start address and the end address are expressed as the number of logical sectors relative to the first logical sector of the volume information file 82. However, the start address (SATSP
T, SAVMMPGCIBT, EAVMMPGCIB
T) is expressed as a relative number of logical bytes. If these start addresses do not exist, that fact is described.

Title search pointer table (TSP)
T) 102 includes remote control operated by the user, that is, search information for setting a title corresponding to a key operation and an input number from the display unit 4. In other words,
In the title search pointer table (TSPT) 102, information on the selection of the program chain corresponding to the input number from the remote controller is described. In the title search pointer table (TSPT) 102, the number of selectable titles, the title set number of the title corresponding to the input number selected and input by the user,
Information indicating the start program chain number for executing the reproduction control and the start address of the title set is described. Specifically, the title search pointer table (TS
As shown in FIG. 7, a title type indicating whether the title is a video title or an audio title, or the number of title sets (TSN), or a title (TSN), is first selected when a number is input on the device side. The program chain number (PGCN) and the start address of the title set (SATS) are described.

The volume menu-program chain information block table (VMMPGCIBT) 104 includes volume menu program chain information (VMMPGCI) for generating a volume menu for each language.
I) is described. In other words, this table (VMM
The PGCIBT 104 includes control information for reproducing and selecting a title menu for selecting a title and a language menu for selecting a language for each language, for example, English, German, Japanese, and the like. . Here, the program chain corresponds to a sequence for reproducing a video title, an audio title, a video title set menu, and a volume menu, that is, a story, as will be described later with reference to FIG. Is defined as a set of selected programs for realizing Program chain (PG
C) corresponds to a set of a plurality of programs each formed by arranging one or a plurality of cells, each of which is selected. In the program chain, numbers 0 to i are assigned to the programs according to the arrangement order. Is attached.

This volume menu program chain information block table (VMMPGCIBT) 104
8, information on the volume menu program chain information block table 104 (VMMPGCIBTI) 111, a plurality of volume menu language block search pointers (VMMBBSP) 112 provided for each language in this volume, as shown in FIG. Describes a plurality of volume menu language blocks (VMMLB) 13 provided for each language in the volume. Volume menu program chain information block table information (VMMPGCIBTI) 11
1 includes the number of languages (NVMMLANG) in the volume menu and this table 104 as shown in FIG.
In the volume menu language block search pointer (VMMLBSP) 112, as shown in FIG. 10, a predetermined language code (VMMLCODE) designated by the pointer (VMMBBSP) 112 is described. )
And the start address (S) of the volume menu language block 113 (VMMLB) corresponding to the language code.
AVMMLB).

Volume menu language block (VMM
The LB) 113 is composed of volume menu language block information (VMMLBI) 108 and volume menu program chain information (VMMPGCI) 109 for the same language, as shown in FIG. This volume menu language block 113 (VMMLB
I) includes the language block 1 as shown in FIG.
13 (VMMMLB) last address (EAVMML)
B), the number of title menus (NTM) of the language block 113 (VMMLB), information (IVMMPGCITM) such as the start address of volume menu program chain information (VMMPGCI) for the title menu expressed in this language, the language menu Number (NL
M) and information (IVMMPGCILM) such as a start address of volume menu program chain information (VMMPGCI) for a language menu.

As shown in FIG. 12, the volume menu program chain information (VMMPGCI) includes a relative start address (CFPLSN) of the volume menu in the menu object, and a title (number of sub-pictures) n (selectable in the menu). SELECTN), select #
From the title set number (TSN) No. 1 of the title set of selection #n (TSN) and the start address of the title set of selection start number # 1 From the start address of the title set of selection start number #n (first to first) The sub-picture stream numbers (SPN) to be selected up to n-th are described.

The text information table (T shown in FIG.
In the (XTIT) 92, information such as a title name and an album name in the volume, their performers, producers, production dates, and the like are described in a text format. This text information table (TXTIT) can be used in a general personal computer.

A title set information search pointer table (TSISPT) 93 shown in FIG. 5 provides information on a menu prepared for each title set in the volume. In this, information indicating a title set having a menu, a start address in each title set attribute table, a start address in a title set menu program chain block table, and a start address of a title set menu video object are described. . More specifically, a title set information search pointer table (TSISPT) 93
The information (TSISPT) of the title set information search pointer table (TSISPT) as shown in FIG.
PTI) and subsequent title set information search pointers (TS) of the first to n-th title sets.
ISP) is described. FIG. 14 shows title set information search pointer table information (TSISPTI).
The number of title sets (NTS) and the final address of this table information (TSISPTTI) are described as shown in FIG. In addition, the title set information search pointer (T
As shown in FIG. 15, a title set attribute (TSCAT) and a title set attribute table (T
SATRT) 94 start address (SATSATR),
The start address of the title set menu program chain information block table group (TSMPGCIBTG) 95 and the start address of the video object (VOBTSM) of the title set are described.

The title set attribute table (TSATRT) 94 shown in FIG. 5 provides each title in the volume and attribute information of the title menu. In this, information indicating attributes such as the number of streams of video, audio, and sub-pictures and the compression mode and data configuration of each stream are described. More specifically,
As shown in FIG. 16, a title set attribute (TSATR) 117 is described for each title set, and the parameters shown in FIG. 17 relating to the attribute information of the video title set (VTS) and the video title set menu (VTSM) are the title set attributes (TSATR). 117. This parameter contains the attributes of the video (VTS
ATR), the number of audio streams of the video title set (VTS) (VTSNAST), the attribute of the audio stream of the video title set (VTS) (VTSAATR), and the number of audio streams of the video title set menu (VTSM) (VTSMN)
AST), Video title set menu (VTSM)
Audio stream attribute (VTSMAATR), the number of sub-picture genres of video title set (VTS) (VTS
NSPST), the video title set (VTS) sub-picture attribute (VTS SPATR), and the number of sub-picture streams in the video title set menu (VTSM) (VTSM)
NSPST), video title set menu (VTS
M) describes a sub-picture attribute (VTSMSPATR) and a sub-picture palette (VTSSPLT).

The audio title set (AT
Similarly, for the attribute information of S), the parameters shown in FIG. 18 are described in the title set attribute (TSATR) 117. This parameter includes the video attribute of the sub-picture (ATSVATR) and the number of audio streams (AT
SNAST), audio stream attribute (ATSAA)
TR), the number of sub-picture streams (ATSNSPST),
There is a description of a sub-picture attribute (ATSSPAATR) and a sub-picture palette (ATTSPSPLT).

The title set menu program chain information block table group (TS) shown in FIG.
MPGCIBTG) 95 is a title set menu PGC block table (TSMPGCIBT) for each video title set (VTS) as shown in FIG.
The block table (TSMPGCIBT) 119 controls the reproduction and menu selection of the menu video object of the title set prepared for each title in the volume. In each title set menu PGC block table (TSMPGCIBT) 119, the number of languages prepared for each title and its language code, the number of menus such as sub-pictures, audio and programs for each language,
Each piece of reproduction control information is described.

More specifically, PGC block table for title set menu (TSMPGCIBT) 119
Describes information on a video title set menu program chain (VTSMPGC) for reproducing a video title set (VTS) in each language. This PGC block table (TSMPGCIBT) 11
9, a video title set menu program chain information block table information (VTSMPGCIBTI) 121, a video title set menu language block search pointer (VTSMLBSP) 122 for many languages, and a video for many languages as shown in FIG. Title set menu language block (VT
SMLB) 123 is described.

Video title set menu program chain information block table information (VTSMPGCI
As shown in FIG. 21, the number of languages of the video title set menu (NVTSML) and the block table information (VTSMPGCIBTI) 1
21, the last address (EAVTSMPGCIBT) is described. In addition, as shown in FIG. 22, the VTSM language block search pointer (VTSMLBSP) 122 has a language code (VTS
MLCODE), the last address (SAVTSMLB) of the VTSM language block search pointer (VTSMLBSP) 122 is described.

The video title set menu language block (VTSMLB) 123 is a block of program chain information of the video title set menu grouped for each language, and as shown in FIG. 23, the video title set language block information (VTSMLB).
I) 124 and program chain information (VTSMPGCI) 125 for each video title set menu are described. VTSM language block information (VTSMLB
As shown in FIG. 24, the last address (EAVTSMLB) of the VTSM language block information (VTSMBI) 124 and the number of author menus (NAT)
M), information (IVTMPGCI) of program chain information (VTSMPGCI) of the VTS menu relating to the author menu
SMPG CIATM), number of sub-picture menus, (NSP
M), information (IVTMPCI) of the program chain information (VTSMPGCI) of the VTS menu relating to the sub-picture menu
SMPGCISPM), number of program menus (NP
GM) and information (IVTSMPGCIPGM) of the program chain information (VTSMPGCI) of the VTS menu relating to the program menu. VT
S program chain information (VTSMPGCI) 125
For example, as shown in FIG. 25, for the sub-picture menu, the start address (CFPLSN) of the menu in the menu object, the number n of sub-pictures that can be selected in the menu (SELSPN), and the first to n-th The sub video stream number (SPN) to be selected and the like are described.

The menu data area 82-2 shown in FIG. 5 contains a volume menu video object (VOBV @ M) as menu data as described above.
96 and a video object (VOBTSM) for a title set menu. The volume menu video object (VOBV @ M) 96 includes, for each language, a data group constituting a title menu screen for selecting a title of the entire volume, and an initial menu screen for selecting a language. Data group to be stored. The title set menu video object (VOBTS) is provided with menu blocks for the number of title sets, and constitutes a menu surface for selecting a sub-picture, audio and a program in the title for each language. Is stored.

Here, the volume menu video object (VOBV @ M) 96 and the title set menu video object (VOBTSM) both have the structure of the video object 130 shown in FIG. That is, as shown in FIG. 26, the video object 130 includes the video pack 131 and the sub-picture pack 1
32, audio pack 133, video blanking (VBI) pack 134, and data search information (DS
I) Packs 135 are arranged. The video object 130 conforms to the MPEG standard (ISO / IEC13818).
It is configured according to a program stream defined in the system section of -1).

These packs 131 to 135 are MPEG
As shown in FIG. 27, the pack has a structure of a pack 139 composed of a pack header 137 and a packet 138 following the pack header 137, and the pack length is set to 2048 bytes corresponding to one logical sector. ing. The pack header 137 stores control information such as time information, and the packet 138 stores video data, audio data, sub-picture data, and video blanking information (VB
I) or disk search information (DSI) and control information on these data or information are stored.

The video title set (VTS) 84 will be described with reference to FIG. The video title set (VTS) 84 has five areas separated on the boundary of the logical sector as shown in FIG. These five areas respectively contain video title set management information (VTS
MI) 141, video title set time search map table (VTMAPT) 142, video title set video object (VOBTS) 144, title set menu video object (VOBTS)
M) 145 and a video object (VOBVMM) 146 of a volume menu. The video title set management information (VTSM) 141 includes management information of the video title set (VTS) 86, for example, attribute information of the video title set (VTS) 86, a program chain in the video title set (VTS) 86, or Information about the program is described. In the video title set time search map table (VTMAPT) 142, information on the recording position of the video data of each program chain of the video object (VOBTS) 144 in the video title set (VTS) 86 is described. Video title set video object (VO
The BTS 144 has the structure of the object 130 already referred to in FIG. The video object (VOBTSM) 145 of the title set menu corresponds to one of the video objects (VOBTSM) 97 of the title set menu shown in FIG. 5, and in the volume information file 82, the video object (VOBTSM) of the title set menu of each video title set 84 is displayed. VOB
TSM) 145 is the volume information file 8 shown in FIG.
2 is collected in the menu data area 82-2. Similarly, the video object (VOBVMM) 146 of the volume menu corresponds to the video object (VOBVMM) 96 of the volume menu shown in FIG. 5, and has the same video object (VOBTSM) 97 structure.

Next, referring to FIG. 29, pack 139, cell 140, program, program chain (PG
C), the relationship between the file 88, the object 130, and the title sets 84 and 86 will be described.

As already described with reference to FIG. 4, the title sets 84 and 86 are composed of at least one file 88 divided at the boundary of the logical sector, up to 10 files, and have already been described with reference to FIG. As described above, it has a structure separated on the boundary of the logical sector. Management information (VTSM) 1 shown in FIG.
41, map table (VTSMAPT) 142, video objects (VOBTS, VOBSM, VOBV)
MM) 144, 145, and 146 may be stored in one file 88 according to the data amount, or may be the management information (VTMI) 141 and the map table (VTS).
(MAPT) 142 may be stored in one file 88, or a video object (VOBTS) 144 may be stored in one or more files 88. When the playback data is movie data, the video data (VOBTS) 144 usually stores video data over a plurality of files 88.

The video object 130 corresponds to FIG.
9, a large number of video cells 150 are arranged, and each cell 150 has a DSI pack 135, a VB
1 GOP (Group of Pictur) as a set of I pack 134, sub-picture pack 132 and audio pack 133
The packs 139 of a plurality of GOPs are arranged based on e). Here, a movie story is
The sequence is represented by a continuous sequence corresponding to “ki”, “sho”, “to” and “katsu”, and each chapter of this sequence corresponds to a program. Therefore, each program
Each object 13 is defined as a set of cells 150.
In 0, a plurality of programs according to the cell arrangement order are defined, and numbers from the first program to the last program are given. A set of such programs is defined as a program chain (PGC) as a sequence. One program chain may be stored in one object 130, or a plurality of program chains may be stored.

Next, referring again to FIG. 1, FIGS.
The operation of reproducing movie data from the optical disk 10 having the logical format shown in FIG. In FIG. 1, solid arrows between blocks indicate data buses, and broken arrows indicate control buses.

First, the operation flow until the volume menu is displayed will be described with reference to FIGS. In the optical disk device shown in FIG. 1, when the power is turned on and the optical disk 10 is loaded, the system CPU unit 50 reads the initial operation program from the system ROM and RAM 52 and operates the desk drive unit 30. Therefore, the disk drive unit 30
0, a read operation is started from the lead-in area 27 as shown in step S10, and a volume management area following the lead-in area 27 as shown in step 11, which defines a volume and a file structure according to ISO-9660 or the like. 70 is read. That is, the system CPU unit 50
Is the disk 1 set in the disk drive unit 30
In order to read the volume management information area 70 recorded at a predetermined position of 0, a read command is given to the disk drive unit 30 to read the contents of the volume management area,
The data RAM unit 5 via the system processor unit 54
6 temporarily. The system CPU unit 50 manages information such as the recording position and recording volume size of each file and other information necessary for management via the path table and the directory record stored in the data RAM unit 56 as shown in step 12. Extract information, ROM for system
The data is transferred to a predetermined location in the & RAM unit 52 and stored.

Next, the system CPU unit 50 refers to the information on the recording position and the recording capacity of each file acquired in step 12 from the system ROM & RAM unit 52 and stores the volume information file 82 corresponding to the file number 0. get. That is, the system CPU 50 refers to the information on the recording position and the recording capacity of each file acquired in step S12 from the system ROM and RAM 52, and gives a read command to the disk drive unit 30. As shown in the figure, the volume information file 82 having a file number 0 on the root directory
, The volume information file 82 is read, and via the system processor 54,
The data is stored in the data RAM unit 56. The volume information file manager (VMIFM) 91, which is the first table of the volume information file 82, executes step S1.
4 is searched.

In step S14, the system CPU
The unit 50 includes a volume information file management (VMIF)
M) The volume information file management table (VMIFMT) 1 shown in FIG.
Search for 01. In step S15, the volume menu-PGC information block table (VMMPGIB
T) Start address of 104 (SAVMMPGCIBT)
And last address (EAAVMMPGCIBT) and video object for volume menu (VOBVM
M) The start address (SAVOBVMM) of 96 is acquired by the system CPU 50.

In step S16, in step S14
Volume information file manager (VM
IFM) 91 volume information file management table
The system CPU 50 obtains the number of video, audio, and sub-picture streams for the volume menu described in (V @ IFT) 101 and their attribute information. Based on the attribute information acquired in step S16, as shown in step S15, parameters for volume menu reproduction are set in each of the video decoder 58, the audio decoder 60, and the sub-picture decoder 62.

The volume menu-PGC information block table (V @ GCIB) obtained in step S15
T) 104 start address (SAVMMPGCIBT)
From the last address (EAV @ MPGCIBTI)
As shown in step S17, the volume menu-PGC
The table of the information block table (VMMPGCIBT) 104 is obtained. The volume menu-PGC information block table (VMMP) acquired in step S17
GCIBT) 104 in the table shown in FIG.
From the MLANG information (VM @ GCIBTI) 111,
As shown in step S17, the volume menu language number n (NV
G) is obtained. Volume menu language block search pointers prepared by the number of volume menu languages n (@VMMMLANG) acquired in step S18
The m-th (m = 0) in (VMMLBS $) 112 is searched in step S19, and the volume menu language code (N) corresponding to the language code of this volume menu language block search pointer (VMMLBS $) 112
VMMLANG) is obtained.

This volume menu language code (NV
MMLANG) matches the language code of the player system preset in the ROM 52 of the system shown in FIG. 1 as shown in step S20 of FIG. If they do not match, the number n of languages to be searched is reduced as shown in step S21, and the volume menu language described in the (m + 1) -th volume menu language block search pointer (VMMLBS #) 112 Code (VMMLCODE)
Is obtained, and step S20 is repeated again. In this way, the search for a language code is repeated. When the number n of languages to be searched becomes zero as shown in step S22, it is determined that there is no matching language code, and as shown in step S23, the first m-th volume menu language block search pointer (VMML)
BS @) 112 and the volume menu language block (VM @ L) described in the volume menu language search pointer (VMMLBS @) 112.
B) The start address (SAV @ LB) of 113 is obtained. Here, in the player system shown in FIG. 1, a code of a language in which the player system is used, for example, a Japanese code in Japan or an English code in the United States is set in the system ROM 52 in advance.

If there is a language code that matches the language code of the player system at step S20, the start address of the volume menu language block (VMLB) 113 of the matched volume menu language block search pointer (VMMLBSP) 112 SAVML
B) is obtained. Start address (SAVMMLB) of volume menu language block (VMLB) 113
Then, as shown in step 24, a volume menu language block (VMMLB) 113 is obtained.

The volume menu language block information (VMMLBI) 1 in the table of the volume menu language block (VMMLB) 113 obtained in step 24
08 and the number of title menu PGCs corresponding to the number of title menus ({T})
(IVMMPGCITM) and the volume menu PGC information (VMMPGCCI) as shown in step S25.
I) 109 is determined, and the relative start address (CFPLSN) of the volume menu video object constituting the first title menu screen described therein is obtained.

Similarly, the number of language menus in the volume menu language block information (VMMLBI) in the volume menu language block (VMMLB) table
(ΝLM) and the language menu PGC information (IVMMPGCILΜ) corresponding to the number of menus, as shown in step S26, the volume menu-PGC information (
VMMPGCI) is determined, and the relative start address (CFPLSN) of the video object for the volume menu constituting the first language menu screen described therein.
Is obtained.

The relative start address of the volume menu video object obtained in steps 25 and 26 is added to the start address (SAVOBVMM) of the volume menu video object (VOBVMM) obtained in step 15 in step 27 to obtain the target volume. From the menu video object 96, a program chain for the volume menu is extracted. Therefore, the cells constituting the program chain for the volume menu are decoded by the video decoder unit 58, the audio decoder unit 60, and the sub-picture decoder unit 22,
The digital data decoded by the D / A and reproduction processing section 64 is converted into analog data, and the volume menu screen is displayed on the monitor section 6 together with the sound from the speaker 8. Examples of volume menus include a movie actor's symbol and the first complete movie of a particular actor.
A display such as a volume is displayed.

Next, the operation from title menu display to title selection will be described with reference to FIGS. 32 and 33. Here, it is assumed that the volume information file 82 shown in FIG. 5 includes a plurality of title menus, for example, a case where the volume information file 82 includes three title menus. In such an example, step 24 shown in FIG.
Has already determined that the number of title menus ($ TM) is three, and information of the title menu PGC corresponding to the number of menus (IV @ GCIT}) and the corresponding volume menu @GC information (VMM @ G
CI) has been obtained. The basic title selection process consists of three title menu screens 1 as shown in FIG.
The start address (CFPLS @) of each of the video data 51, 152, and 153, the number of titles that can be selected in the menu (SELTS #), the title set number (TS #) corresponding to the selection number, and the start address of the title set ( SATS) is described.
Up to VΜMPGC # 3 is cyclically switched by a key operation and a button operation of the display unit 4 to switch the display of a plurality of menus. The selection of the title menu is performed by selecting the selection number displayed on both sides of the menu by key operation and the 10 key of the display unit 4 or the like. With regard to selection of a menu such as a sub-picture or audio in the title set, the type of sub-picture or audio is selected in the same manner. The menu screen shown in FIG.
1, 152 and 153 are composed of one or a plurality of data cells, the background is reproduced with still image data or moving image data, and symbols, codes and selected title names are reproduced with sub-pictures. Audio is played as a voice navigator. The reproduction data of this menu screen is also handled as one program chain defined by one or a plurality of data cells.

When the operation of selecting the title sets 84 and 86 from the display of the title menu is started in step S31 of FIG. 32, first, as shown in step S32, the number of title menus n (NTM) and the number of menus The contents of the volume menu-PGC information (V @ GCI) are acquired by the system CPU 50. Step S3
3, the menu start address (C) in VM @ GCI # 1 which is the first volume menu-PGC information
First title set menu 1 from F @ LSN)
51 is displayed (m = 1). Next, as shown in step S34, waiting for a key input from the user is repeated. It is confirmed whether a button for performing menu switching or the like has been pressed as shown in step S35. Step S35
If there is a switching request in step S36, m =
Determine n. If m = n in step S36, the process returns to step S33. If m ≠ n in step S36, m =
m + 1, and the process proceeds to step S38. The m-th title set menu is displayed from the menu start address (CFPLSN) in VMMPGCI # m which is the next volume menu-PGC information. 10 in step S39
It is confirmed whether the number selection by the key has been executed. If there is no selection with the 10 key in step S39, the process returns to step S35. If a number has been selected in step S39, a corresponding title set number (TSN) is obtained from the number n of selectable titles (SELTS #) in VMMPGCI # 1 to VMMPGCN # n as shown in step S40. , Its start address (SA
TS) is held.

The title set number (TS #) obtained in step S40 and the title set menu-PGC information block table group (TSMPGCIBTG) 9
5 to the corresponding video title set PGC information block table (VTSMGCIB)
T) 121 is extracted in step S41, and selection of a sub-picture and an audio stream and selection of a program are executed in the same manner as in the title menu.

Based on the title set number (TS #) obtained in step S40 and the title set information search pointer table (TSISPT) 115, step S42 is executed.
The information of the corresponding title set number is fetched as shown in (1), and the TSATR start address (SATSATR),
TSM @ GCIBT start address (SATSM @ GCI
BT), VOBTSM start address (SAVOBTS
Μ) is obtained. TSAT acquired in step S42
From the R start address (SATSATR) and the title set attribute table (TSATRT), the attribute information of the selected title set (sub-picture, audio) is stored in step 4.
3 is obtained. Based on the attribute information obtained in step S43, parameters for title set reproduction are set in advance for each decoder as shown in step S44. In step S40, the process jumps to the actual title set based on the start address (SATS) of the title set 84 held. The title menu is obtained by jumping to this title set, and step 4
As shown in FIG. 6, the selection of a certain movie title from the menu is completed, and the operation of reproducing the movie is started.

The system CPU 50 reads out the video title set management information (VTSM) 141 of the title set 84 from the optical disk 10 and stores it in the system ROM and RAM 52, and stores information on the size of the title set 84 and the title set. And other management information. A program chain corresponding to the title selected in step 46 is read from the optical disc 10 based on the management information. That is, the data cells of the selected program chain are successively stored in the video object 1.
The data is read from the memory 44 and input to the data RAM 56 via the system processor 54. The data cell is supplied to a video decoder unit 58, an audio decoder unit 60, and a sub-picture decoder unit 62 based on the reproduction time information, and is decoded. The D / A and reproduction processing unit 64 converts the signal into a signal. The image is reproduced and the sound is reproduced from the speaker units 8 and 9.

Next, referring to FIG. 35, FIG. 36 and FIG. 37, the video data in the logical format shown in FIG. 4 to FIG. The recording system applied will be described.

FIG. 35 shows an encoder system for generating a video file 88 of a title set 84 in which video data is encoded. In the system shown in FIG. 35, for example, a video tape recorder (VTR) 201, an audio tape recorder (ATR) 202, and a sub-picture reproducer 203 are adopted as sources of main picture data, audio data, and sub-picture data. . These generate main video data, audio data, and sub-video data under the control of the system controller 205, and these generate video data (VENC) 20 respectively.
6. The signals are supplied to an audio encoder (AENC) 207 and a sub-picture encoder (SPENC) 208, and are similarly A / D-converted by these encoders 206, 207, and 208 under the control of a system controller 205, and are encoded by respective compression methods. Encoded main video data (COMP VIDEO), audio data (COMP AUDIO) and sub-video data (COMP
SUB-PIC) as memories 210, 211, 21
2 is stored. This main video data (COM VIDE
O), audio data (COMP AUDIO) and sub-picture data (COMP SUB-PIC) are output to the file formatter (FFMT) 214 by the system controller 205 and converted into the file structure of video data of this system as described above. At the same time, management information such as setting conditions and attributes of each data is stored in the memory 216 by the system controller 205 as a file.

A standard flow of an encoding process in the system controller 205 for creating a file from video data will be described below.

The main video data and audio data are encoded according to the flow shown in FIG. 36, and encoded main video data (COMP VIDEO) and audio data data (COMP AUDIO) are created. That is, when the encoding process is started, parameters necessary for encoding the main video data and the audio data are set as shown in step 70 of FIG. Some of the set parameters are stored in the system controller 205 and used by the file formatter (FFMT) 214. Step S7
As shown by 1, the main video data is pre-encoded using the parameters, and the optimal code amount distribution is calculated.
As shown in step S72, the encoding of the main video is executed based on the code amount distribution obtained by the pre-encoding. At this time, the encoding of the audio data is also executed at the same time. If necessary as shown in step S73, partial re-encoding of the main video data is executed,
The re-encoded part of the main video data is replaced. Main video data and audio data are encoded by a series of steps from step S70 to step S73.

As shown in step S74, parameters necessary for encoding the sub-picture data are similarly set. Some of the parameters set as shown in step S74 are stored in the system controller 205 and used by the file formatter 214.
Sub-picture data is encoded based on these parameters. With this processing, the sub-picture data is pre-encoded according to step S75.

According to the flow shown in FIG. 37, the encoded main video data (COMP VIDEO), audio data (COMP AUDIO) and sub-video data (COMP SUB-PIC) are combined and shown in FIG.
Is converted into a video data file having a title set structure of video data as described with reference to FIG.

That is, as shown in step S76, the cell 150 as the minimum unit of the video data is set, and the cell 150
Cell information (CI) for 50 is created. Next, as shown in step S77, the configuration of the cells 150 constituting the program chain, the attributes of the main video, the sub-video, and the audio are set, and a part of these attribute information is information obtained at the time of each data encoding. Is used. Video title set management information (VTMI) 141 including information on program chains and video title set time search map table (VTMAPT) 142
Is created. In step 78, the control pack (DSI pack) is inserted for each GOP so that the main video data, audio data and sub-video data encoded are subdivided into fixed packs, and each data can be reproduced in time code order. Meanwhile, each data cell is arranged and formatted into a structure of a title set 86 composed of one or a plurality of video files as shown in FIG.

In the flow shown in FIG. 37, the program chain information is obtained by using the database of the system controller 205 in the process of step S77.
Alternatively, the main video data, the audio data, and the sub-video data are re-input as necessary, and are described as program chain information (PGCI).

FIG. 38 shows a disc formatter system for recording title sets 84 and 86 formatted as described above on an optical disc. As shown in FIG. 38, in the disk formatter system,
These file data are supplied to the volume formatter (VFMT) 226 from the memories 220 and 222 in which the created title sets 84 and 86 are stored. The volume formatter (VFMT) 226 extracts management information from the title sets 84 and 86 to create a volume information file 82, and creates logical data to be recorded on the disk 10 in the arrangement order shown in FIG. . Data for error correction is added to the logical data created by the volume formatter (VFMT) 226 by a disk formatter (ECC & RFMT) 228, and the logical data is converted again to physical data to be recorded on a disk. In the modulator 230, the disk formatter (D
The physical data created by the FMT (FMT) 228 is converted into recording data to be actually recorded on the disk, and the modulated recording data is recorded on the disk 10 by the recorder 232.

FIGS. 39 and 40 show a standard flow for creating data to be recorded on the optical disk 10 described above.
This will be described with reference to FIG.

FIG. 39 shows a flowchart for creating logical data to be recorded on the disk 10. That is, as shown in step S80, parameter data such as the number of video data files, the arrangement order, and the size of each video data file are set first. Next, step S
Volume information is created from the parameters set as indicated by 81 and the file management information of each video data file. Thereafter, as shown in step S82, data is arranged along the corresponding logical block number in the order of volume information and video data file, and logical data to be recorded on the disk 10 is created.

Thereafter, a flow for creating physical data to be recorded on the disk as shown in FIG. 40 is executed. That is, as shown in step S83, the logical data is divided into a fixed number of bytes, and error correction data is generated. Next, as shown in step S84, the logical data divided into a fixed number of bytes and the generated data for error correction are combined to create a physical sector. Thereafter, as shown in step S85, physical data is created by combining the physical sectors. As described above, modulation processing based on a certain rule is performed on the physical data generated by the flow shown in FIG. 40, and recording data is created. Thereafter, the recording data is recorded on the disk 10.

[0080]

As described above, in the recording medium having a large storage capacity according to the present invention, one or a plurality of title sets in units of a title set composed of a plurality of files divided by logical sectors and The volume file information to be managed is recorded. Moreover, in each title set, management information of the title set for managing the title set itself and reproduction data as a reproduction object are stored in different files. In such a search for a recording medium, first, volume file information is read to obtain information on a target title set in the entire volume,
Then, the management information of the target title set is obtained and the data is reproduced. Even if the storage capacity of the storage medium is large, volume file information manages one or a plurality of title sets, and since each title set has management information, it is possible to reliably and quickly reproduce target reproduction data. Can be.

The volume file information as selection information includes selection information relating to reproduction of the volume, for example, an object for displaying a volume menu for selecting a language, and selection information relating to selection of each title set, for example, title. And a title set menu for selecting the language of the sub-picture and the type of audio. Therefore, the target reproduction data can be quickly selected only by referring to the volume file information.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing an optical disk device according to one embodiment of the present invention.

FIG. 2 is a block diagram illustrating details of a mechanical unit of the disk drive device illustrated in FIG. 1;

FIG. 3 is a perspective view schematically showing a structure of an optical disk loaded in the disk drive device shown in FIG.

FIG. 4 is an explanatory diagram showing a structure of a logical format of the optical disc shown in FIG. 3;

5 is an explanatory diagram showing the structure of a volume information file corresponding to file 0 in the structure of the logical format shown in FIG. 4;

6 is a volume information file manager (VMIF) in the structure of the volume information file shown in FIG. 5;
M) volume information file management table (VMIF)
3 is a table showing parameters of MT) and their contents.

FIG. 7 shows a volume information file manager (VMIF) in the structure of the volume information file shown in FIG.
3 is a table showing parameters and contents of a title search pointer table (TSPT) of FIG.

8 is an explanatory diagram showing the structure of a volume menu program chain information block table (VMMPGCIBT) in the structure of the volume information file shown in FIG. 5;

FIG. 9 is a volume menu-program chain information block table (VMMPGCIBT) shown in FIG. 8;
4 is a table showing parameters of the volume menu program chain information block table information (VMMPGCIBTI) and the contents thereof.

FIG. 10 shows a volume menu-program chain information block table (VMMPGCIB) shown in FIG. 8;
5 is a table showing parameters and contents of a volume menu language block search pointer (VMMLBSP) in T).

11 is a volume menu-program chain information block table (VMMPGCIB) shown in FIG. 8;
T) volume menu language block 113 (VM
3 is a table showing parameters and contents of volume menu language block information (VMMLBI) constituting MLB).

FIG. 12 is a table showing parameters and contents of volume menu program chain information (VMMPGCI) described in FIG. 11;

FIG. 13 is a title set information search pointer table in the structure of the volume information file shown in FIG. 5;
FIG. 4 is an explanatory diagram showing the structure of (TSISPT).

FIG. 14 shows title set information search pointer table information (TSISPT) in the title set information search pointer table (TSISPT) shown in FIG.
It is a table | surface which shows the parameter of I), and its content.

15 is a title set information search pointer (TSISP) shown in FIG. 13 in the title set information search pointer table (TSISPT) shown in FIG. 5;
3 is a table showing parameters and their contents.

FIG. 16 shows a title set attribute table (TSATR) in the structure of the volume information file shown in FIG.
It is explanatory drawing which shows the structure of T).

17 is a table showing parameters and contents of video title set attribute information described in a title set attribute table (TSATRT) shown in FIG. 16;

FIG. 18 is a title set attribute table shown in FIG. 5;
FIG. 17 is a table showing parameters and contents of attribute information of an audio title set (ATS) included in (TSATRT) and described in a title set attribute (TSATR) shown in FIG. 16.

FIG. 19 shows a title set menu program chain information block table group (TSMPGCIBT) in the volume information file structure shown in FIG.
It is explanatory drawing which shows structure of G).

20 is an explanatory diagram showing the structure of a title set menu PGC block table (TSMPGCIBT) in the structure of the volume information file shown in FIG. 5;

21 is a table showing parameters and contents of video title set menu program chain information block table information (VTSMPGCIBTI) in the title set menu PGC block table (TSMPGCIBT) shown in FIG. 20;

22 is a diagram showing V in the title set menu PGC block table (TSMPGCIBT) shown in FIG. 20.
TSM language block search pointer (VTSMLBS
It is a table | surface which shows the parameter of P) and its content.

FIG. 23 shows a video title set menu language block (VTSML) in the title set menu PGC block table (TSMPGCIBT) shown in FIG. 20;
It is explanatory drawing which shows the structure of B).

24 is a table showing parameters and contents of VTSM language block information (VTSMBI) in the video title set menu language block (VTSMLB) shown in FIG. 23.

25 is a table showing parameters and contents of VTS menu program chain information (VTSMPGI) in the video title set menu language block (VTSMLB) shown in FIG. 23.

FIG. 26 is an explanatory diagram showing the structure of a video object included in the volume information file and the title set shown in FIG. 4;

FIG. 27 is an explanatory diagram showing the structure of a pack constituting the video object shown in FIG. 26;

FIG. 28 is an explanatory diagram showing the structure of the video title set shown in FIG.

FIG. 29 is a diagram illustrating the relationship between objects, cells, and various packs.

FIG. 30 is a flowchart until a volume menu is displayed.

FIG. 31 is a flowchart until a volume menu is displayed.

FIG. 32 is a flowchart showing an operation from title menu display to title selection.

FIG. 33 is a flowchart showing an operation from title menu display to title selection.

FIG. 34 is an explanatory diagram showing a title menu displayed on the monitor of FIG. 1 and switched periodically.

FIG. 35 is a block diagram illustrating an encoder system that generates video files by encoding video data.

FIG. 36 is a flowchart showing an encoding process shown in FIG. 35;

FIG. 37 is a flowchart of creating a video data file by combining main video data, audio data, and sub-video data encoded according to the flow shown in FIG. 36;

FIG. 38 is a block diagram showing a disk formatter system for recording a formatted video file on an optical disk.

FIG. 39 is a flowchart for creating logical data to be recorded on a disk in the disk formatter shown in FIG. 38;

FIG. 40 is a flowchart for creating physical data to be recorded on a disk from logical data.

[Explanation of symbols]

 Reference Signs List 6 monitor part 8 speaker part 10 optical disk 14 transparent substrate 16 light reflection layer 28 data recording area 30 disk drive part 32 optical pickup 34 objective lens 36 focus drive circuit 37 drive circuit 44 servo Processing circuit 50: System CPU 54: System processor 56: Data RAM 58: Video decoder 60: Audio decoder 62: Sub-picture decoder 64: D / A and playback processing circuit 70: Volume management information area 80: File Area 82 Volume information file 84 Video title set 86 Audio title set 88 File 90 Menu data cell 201 Video tape recorder 202 Audio tape recorder 203 Video reproducer 205 ... system controller 206 ... video encoder 207 ... audio encoder 208 ... sub-picture encoder 205 ... system controller 220, 222 ... memory 226 ... volume formatter 228 ... disk formatter 230 ... modulator 232 ... recorder

Continuing on the front page (72) Inventor Shinichi Kikuchi 3-3-9, Shimbashi, Minato-ku, Tokyo Toshiba Abu E Co., Ltd. (72) Inventor Yuzo Tamada 8 Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture Shares (72) Kazuhiko Taira, 3-3-9 Shimbashi, Minato-ku, Tokyo Inside Toshiba AV EE Co., Ltd. (56) References International Publication 95/12197 (WO, A1) International publication 95/12198 (WO, A1) (58) Fields investigated (Int. Cl. ⁶ , DB name) G11B 27/00 G11B 27/10 G11B 20/12

Claims (5)

(57) [Claims] 1. A pack generating step of encoding video, audio, and sub-picture data and storing them in video, audio, and sub-picture packs, respectively, and storing control information of these data in a control pack; A method for recording data on an optical disc, comprising the steps of: preparing an object to be played back consisting of a pack sequence; generating management information of the object; and recording the management information and the object on the optical disc , The object includes a video object corresponding to a title capable of selecting audio and sub-picture, a menu object for title selection, a menu object for sub-picture and audio selection, the menu object for title selection, Choose title Items are displayed in different languages, each of which includes a plurality of first menus that can be selected corresponding to each language, and the sub-picture and audio selection menu objects are sub-picture and audio Includes a second menu in which selection items for selecting are displayed in different languages, wherein the management information includes attribute information of data constituting the video object and attribute information of data constituting the first and second menus And the first and second menu selection information, wherein the first menu selection information specifies the number of menus corresponding to the languages included in the title selection menu object and each of them specifies the language of the first menu. A plurality of search points including a language code and an address specifying reproduction information of the first menu corresponding to the language. The first menu reproduction information includes a start address of first menu data in the video object, and the second menu selection information is included in the sub-picture and audio selection menu objects. The number of menus corresponding to the language and a plurality of search pointers each including a language code specifying a language of the second menu and an address specifying reproduction information of the second menu corresponding to the language; Wherein the reproduction information includes a start address of second menu data in the video object. 2. The method for recording data on an optical disk according to claim 1, wherein said management information includes a title search pointer table for directly searching for a title. 3. The first and second menu selection information, a video object, a title selection menu object, a sub-picture and an audio selection menu object are recorded separately on the boundary of a logical sector. 2. The method according to claim 1, wherein the video, audio and sub-picture packs have a pack length corresponding to one logical sector. 4. The optical disk according to claim 1, wherein said second selection information describes the number of sub-pictures and the number of sub-picture streams that can be selected in a second menu. Method. 5. A pack generating means for encoding video, audio, and sub-picture data and storing them in video, audio, and sub-picture packs, respectively, and storing control information of these data in a control pack; An apparatus for recording data on an optical disk, comprising: a unit for preparing an object to be played back composed of a pack sequence; a unit for generating management information of the object; and a unit for recording the management information and the object on an optical disk , The object includes a video object corresponding to a title capable of selecting audio and sub-picture, a menu object for title selection, a menu object for sub-picture and audio selection, the menu object for title selection, Choose title Items are displayed in different languages, each of which includes a plurality of first menus that can be selected corresponding to each language, and the sub-picture and audio selection menu objects are sub-picture and audio Includes a second menu in which selection items for selecting are displayed in different languages, wherein the management information includes attribute information of data constituting the video object and attribute information of data constituting the first and second menus And the first and second menu selection information, wherein the first menu selection information specifies the number of menus corresponding to the languages included in the title selection menu object and each of them specifies the language of the first menu. A plurality of search points including a language code and an address specifying reproduction information of the first menu corresponding to the language. The first menu reproduction information includes a start address of first menu data in the video object, and the second menu selection information is included in the sub-picture and audio selection menu objects. The number of menus corresponding to the language and a plurality of search pointers each including a language code specifying a language of the second menu and an address specifying reproduction information of the second menu corresponding to the language; Wherein the reproduction information includes a start address of second menu data in the video object.