JP2003109306A - Data recording method, data recorder, program and medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fast record a TV program on a DVD disk while enabling easy editing. SOLUTION: An image and sound recorder is provided with: an encoding part 2 for compressingly encoding data inputted from the outside and generating a program elementary stream common to a DVD video standard and a DVD video recording standard; an independent information generating part 4 for generating information independent in each of the standards; a common information generating part 3 for generating information common to both standards; and a recording medium input-output part 6 for recording the generated program elementary stream, independent information and common information on a recording medium A7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording method for recording a digital TV broadcast program or the like,
The present invention relates to a data recording device, a program, and a medium.

[0002]

2. Description of the Related Art In recent years, the application of image / audio compression technology has been applied to CD-ROMs, hard disks, DVDs (CD-ROMs, hard disks, and DVDs) of home appliances and computers that are oriented toward the digitization of audio and video from the communication field of transmitting image and audio signals using communication lines. Dig
It is widely used for digital home appliances storage media such as ital Versatile Disc). In particular, MPEG2 (Mov
ing Picture Experts Group
Against the backdrop of standardization of Phase2), this M
A new digital broadcasting service combining PEG2 and communication satellites has started.

Further, in the field of home appliances and computers, in addition to VTRs that have recorded analog signals up to now, MPEG2 that digitally compresses movies, music programs, karaoke, etc.
DVD players for reproducing data are also widely used.
In a DVD player, an optical disc called a DVD is a recording medium for video signals and audio signals. Then, a DVD video recording standard is set for a rewritable DVD medium in real time so as to be easily edited later, and a DVD video recorder conforming to the DVD video recording standard is commercially available.

The VTR was capable of both recording and reproducing data. Until now, DVD players have only been able to reproduce data. It is desirable for the user to be able to record video and audio on a DVD by himself. An apparatus called a DVD video recorder such as a DVD-RAM or a DVD-R can write data on a disk medium, and its market has been established as a randomly accessible recording medium that replaces the conventional VHS standard video tape. Came. If the recording is performed in the MPEG-PS format and with the compatibility of the recording format with the DVD player, it is possible to provide an apparatus capable of providing the recording medium according to the DVD video standard which can be easily reproduced by a normal DVD player.

As described above, a DVD video recorder or the like, which allows the user to perform recording in conformity with each DVD standard, has begun to spread rapidly.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
There is a difference between the video recording standard and the DVD video standard.

The DVD video standard is a specification suitable for reproducing a previously edited medium so that it can be easily reproduced by an ordinary DVD player, and editing is not assumed. On the other hand, the DVD video recording standard is for editing and playing back what is recorded by an individual, but it is premised on playback on a DVD video recorder compatible with the DVD video recording standard in advance.

Therefore, in the past, while enabling editing,
In order to make a recording that can be easily played back by a normal DVD player, it is said that a program once recorded by the DVD video recording standard is edited, the edited program is played back, and the encoded recording is performed again by the DVD video standard. It took time and effort. Even if the drive for recording a DVD can record at a high speed, re-encoding is necessary, and if the encoding speed is about the standard reproduction speed, high speed conversion recording cannot be performed.

In view of the above-mentioned conventional problems, the present invention, for example, is a data recording method, a data recording device, a program, and a data recording method capable of recording a TV program on a DVD disc at high speed while allowing easy editing. It is intended to provide a medium.

[0010]

[Means for Solving the Problems] The first invention (Claim 1)
Corresponds to the step of performing a predetermined compression encoding on the image data and / or the audio data input from the outside to generate a program elementary stream common to a plurality of predetermined standards. A step of generating unique information unique to each of the standards, a step of generating common information common to the plurality of standards, and (a) the generated program elementary stream on a predetermined recording medium. And (b) recording the generated unique information and (c) recording the generated common information.

In a second aspect of the present invention (corresponding to claim 2), the predetermined compression encoding is compression encoding corresponding to the DVD standard, and the plurality of standards are the DVD video standard and the D standard.
A first aspect of the present invention, which is a VD video recording standard, wherein the common information common to the plurality of standards is information including navigation information regarding a recording position of the generated program elementary stream on the predetermined recording medium. Data recording method.

Data such as television broadcast is received and temporarily recorded on a rewritable recording medium, and after the CM portion is cut and edited, the DV can be easily reproduced on a DVD player or the like.
It can be easily converted to the D-video standard format. Therefore, since the data for the DVD video standard can be easily created, the data recorded on the rewritable recording medium can be converted and recorded at high speed on the recording medium such as the DVD-R.

According to a third aspect of the present invention (corresponding to claim 3), the compression encoding is the DVD video standard and the DVD.
It is a data recording method according to the second aspect of the present invention, which is performed using the number of pixels, the audio compression method, and the compression rate that are common to the video recording standards.

There is a difference between the two standards in the number of pixels of an image, the audio compression method, and the like. In order to make data that can be used in common by both standards, it is necessary to limit to only the compression method and the like existing in both standards. If not, re-conversion is required. For example, in DVD video recording, 2
There is an audio mode called dual monaural format that supports multilingual broadcasting, but it is not in the DVD video standard. In the case of bilingual broadcasting, it is necessary to select either the main audio or the sub audio, and record in a sound system that can be compatible with the DVD video standard such as a monaural broadcast format. If the program data input in this way is recorded by a method that can comply with either standard, it can be recorded without reconversion.

According to a fourth aspect of the present invention (corresponding to claim 4), the compression encoding is the DVD video standard and the DVD.
It is a data recording method according to the second aspect of the present invention, which is performed by utilizing the data size of the recording unit of the generated program elementary stream, which is common to the video recording standards.

Image data information is shared as information commonly used in both the DVD video standard and the DVD video recording standard. The data of the data size of the recording unit of PES is important data for generating navigation information, but can be data commonly used by both standards. Therefore, if it is generated as common information that can be quoted later on data adapted to each standard, it has an effect that it can be easily adapted to each standard later (the I picture size is calculated by the DVD video standard. If you do not know it, it may not be possible to meet other DVD standards, so only the data size of the recording unit was considered).

In a fifth aspect of the present invention (corresponding to claim 5), when the image data is input from the outside as data having a plurality of temporally continuous images, the unique information is continuous. The DV for indicating the positional relationship of images
It is a data recording method according to the second aspect of the present invention, which is generated so as to include unique information in the D video standard.

Even if the recording method is compatible with both the DVD video standard and the DVD video recording standard, the DV
Information that exists only in the D-video standard must be uniquely generated. Therefore, by generating information indicating the position information of the front and rear image data, adding navigation information to the video stream and the audio stream, and generating and recording the navigation stream,
Makes it easier to comply with the DVD video standard.

According to a sixth aspect of the present invention (corresponding to claim 6), when the image data is input from the outside as the data having a plurality of temporally continuous images, the unique information is continuous. The DV for indicating the positional relationship of images
It is a data recording method according to the second aspect of the present invention, which is generated so that unique information is included in the D video recording standard.

Even if the recording method is compatible with both the DVD video standard and the DVD video recording standard, the DV
Information existing only in the D-video recording standard must be uniquely generated. Therefore, the information indicating the position information of the image data is generated for all recording units of about 0.5 seconds, and the navigation information is generated separately in a table format or the like and temporarily stored, thereby supporting the DVD video recording standard later. To facilitate.

In a seventh aspect of the present invention (corresponding to claim 7), the recording of the program elementary stream on the predetermined recording medium is performed by using a recording unit capable of editing in seconds. The data recording method of the present invention.

When the recorded program is edited, if the recording unit is different, it is difficult to edit. For example, if an attempt is made to edit a break in program editing while minimizing audio breaks, it is easy to connect later if the recording unit is the same and the image and audio are complete. However, if this is not taken into consideration, even when the CM is cut, a discontinuity of an image or a sound occurs in the middle of the scene, which is unsightly during reproduction. Therefore, by recording the recording unit in units such as seconds, which are supposed to be edited, there is an effect that the editing operation is easy and the reproduction is not unsightly.

According to an eighth aspect of the present invention (corresponding to claim 8), the program elementary stream is generated by using encoding at a fixed bit rate such that the data amount for each recording unit is substantially the same. It is a data recording method according to the seventh invention of the present invention.

When the recorded program is edited, if the recording unit is different, it is difficult to edit. Therefore, if the data is recorded at a fixed bit rate at the time of encoding so that the recording data amount is constant in units of seconds, there is an effect that division into recording units is easy.

According to a ninth aspect of the present invention (corresponding to claim 9), the program elementary stream is generated at a variable bit rate using padding so that the data amount for each recording unit is substantially the same. Is a data recording method according to the seventh aspect of the present invention.

When the recorded program is edited, if the recording unit is different, it is difficult to edit. Therefore, even if the bit rate is variable at the time of encoding, if recording is performed so that the recording data amount is constant in units of seconds, there is an effect that division into recording units is easy. If the shortage is defined as data that is ignored during decoding, which is defined as padding, no problem occurs during playback.

A tenth aspect of the present invention (corresponding to claim 10) comprises a step of dubbing from a predetermined recording medium on which the recording is performed to another recording medium, wherein the dubbing conforms to the DVD video standard. The data recording method according to the second aspect of the present invention, wherein only one of the unique information unique to the DVD video recording standard and the unique information unique to the DVD video recording standard is copied to the another recording medium.

Common information corresponding to both standards and unique information are once recorded on a rewritable recording medium, and when dubbing to another recording medium, the common information and the unique information specific to one of the selected standards are recorded. By recording only each unique part, the information necessary for reproduction can be recorded without damaging the information and without using an extra recording area.

The eleventh invention (corresponding to claim 11) is
The method further comprises a step of dubbing from a predetermined recording medium on which the recording has been performed to another recording medium, wherein the dubbing is unique information unique to the DVD video standard and the DVD.
It is the data recording method according to the second aspect of the present invention, which is performed so as to copy both the unique information unique to the video recording standard to the another recording medium.

By recording both the information common to both standards as well as the unique information on the same recording medium, it is possible to provide a recording medium that can be reproduced by either standard, and at the same time, it is recorded on this recording medium. There is also an effect that it can be a recording medium for a master that provides recording information conforming to only one of the standards based on the information.

The twelfth aspect of the present invention (corresponding to claim 12) is
A medium on which both the unique information unique to the DVD video standard and the unique information unique to the DVD video recording standard, which are copied by using the data recording method of the eleventh invention, are recorded.

By recording both the information common to both standards and the unique information on the same recording medium, the recording medium can be reproduced by either standard. Therefore,
When recorded on a DVD-R as a recording medium, it can be played back on a DVD player that conforms only to the DVD video standard. On the other hand, based on the information recorded on this recording medium, the DV
It also has the function of being a recording medium for a master that provides recording information conforming to the D-video recording standard.

The thirteenth invention (corresponding to claim 13) is
Program elementary stream generation means for performing a predetermined compression encoding on image data and / or audio data input from the outside to generate a program elementary stream common to a plurality of predetermined standards; A unique information generating means for generating unique information unique to each of the plurality of standards, a common information generating means for generating common information common to the plurality of standards, and a predetermined recording medium. And (a) the generated program elementary stream, (b) the generated unique information, and (c) a recording unit for recording the generated common information. is there.

The fourteenth invention (corresponding to claim 14) is
The predetermined compression encoding is compression encoding corresponding to the DVD standard, the plurality of standards is a DVD video standard and a DVD video recording standard, and common information common to the plurality of standards is the generated. The data recording apparatus according to the thirteenth aspect of the present invention, which is information including navigation information regarding a recording position of the program elementary stream on the predetermined recording medium.

For example, it is equipped with a function of receiving a television broadcast and recording the encoded stream data in a recording medium such as a removable DVD. The removable recording medium is a medium such as DVD-RAM, and DV
If recording is performed in accordance with the D-video recording standard, a DVD-video recording standard disc that can be easily reproduced by another DVD-video recorder can be generated, and recording can be performed in a medium such as DVD-R and in accordance with the DVD-video standard. For example, it has the effect of being reproducible on another DVD player device. Further, after receiving and once recording on a rewritable recording medium and cutting and editing the CM portion and the like, it can be easily converted into a format of the DVD video standard which is easily reproduced by a DVD player or the like. Therefore, DVD
Since data for the video standard can be easily created, the data recorded on the rewritable recording medium can be converted and recorded at high speed.

The fifteenth invention (corresponding to claim 15) is
In the data recording method according to the first aspect of the present invention, predetermined compression encoding is performed on image data and / or audio data input from outside to generate a program elementary stream common to a plurality of predetermined standards. A step of generating unique information unique to each of the plurality of standards, a step of generating common information common to the plurality of standards, and (a) generating the common information on a predetermined recording medium. And a program for causing a computer to execute all or part of the step of recording the generated program elementary stream, (b) the generated unique information, and (c) the generated common information.

The sixteenth invention (corresponding to claim 16) is
In the data recording method according to the first aspect of the present invention, predetermined compression encoding is performed on image data and / or audio data input from outside to generate a program elementary stream common to a plurality of predetermined standards. A step of generating unique information unique to each of the plurality of standards, a step of generating common information common to the plurality of standards, and (a) generating the common information on a predetermined recording medium. And a program for causing a computer to execute all or part of the steps of recording the program elementary stream, (b) the generated unique information, and (c) the generated common information. A medium is a medium that can be processed by a computer.

[0038]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) First, referring mainly to FIG. 1 which is a block diagram showing a configuration of an image / audio recording apparatus according to Embodiment 1 of the present invention, an image / audio recording apparatus (DVD) of this embodiment will be described. The configuration of the video recorder) will be described.

The video / audio recording apparatus of the present embodiment compresses and encodes the data inputted from the outside, and D
An encoding unit 2 for generating a program elementary stream common to the VD video standard and the DVD video recording standard, a unique information generating unit 4 for generating unique unique information for each standard, and a common for both standards. A common information generation unit 3 for generating common information, the generated program elementary stream, unique information,
And a recording medium input / output unit 6 for recording the common information on the recording medium A7.

The recording medium A7 corresponds to a predetermined recording medium of the present invention, and the recording medium B8 corresponds to another recording medium of the present invention.

Next, the operation of the image and sound recording apparatus of this embodiment will be described. It should be noted that an embodiment of the data recording method of the present invention will be described while the operation of the image / audio recording apparatus of the present embodiment is described (the same applies to the following embodiments).

The DVD video recorder of this embodiment is
Description will be made assuming that an external input signal such as an image or an audio signal is input from the input unit 1 or that a television tuner is received by an attached tuner or the like. First, when an analog broadcast such as a terrestrial wave is recorded, an image and a sound are converted from analog to digital (AD) and input to the encoding unit 2.

First, the tuner receives the electric wave of TV broadcasting through an antenna or a cable and converts it into an intermediate frequency signal. Furthermore, TV broadcasting is generally audio multiplex broadcasting, and includes, for example, monaural, stereo, or bilingual broadcasting. An intermediate frequency signal is input from the tuner, and a multiplexed audio signal is detected from the intermediate frequency signal. The multiplex system (also called multiplex mode) is discriminated from the detected multiplex audio signals. Specifically, the control signal is detected from the multiplexed audio signal,
The multiplexing method is determined from the control signal. Here, the multiplexing system includes monaural, stereo, dual monaural dual monaural, multi-lingual with three or more channels, and multi-channel audio for stereophonic sound (front, surround,
And other sound effects, etc.), there is a system of special multi-channel sound such as karaoke sound.

Generally, the audio signals of a plurality of channels multiplexed in the multiplexed audio signal are respectively demodulated, and the audio signals of the respective channels are extracted as mutually independent extracted audio signals. Here, the types of extracted audio signals include monaural audio signals and left channels (Lch) in stereo broadcasting.
There are an audio signal and a light channel (Rch) audio signal, and a main audio signal and a sub audio signal in dual monaural broadcasting. Then, these extracted voices are AD-converted and converted into digital signals by linear PCM. As a result, the audio signal input to the encoding unit 2 is a digital signal in all channels.

When a broadcast program is received, the stereo broadcast may change to a bilingual broadcast or a monaural broadcast while the program is being recorded. When recording in conformity with the DVD video standard, since the audio attribute in the middle of the program title cannot be changed, the main audio signal should be selected when the multiplexing method of the multiplexed audio signal is switched from stereo to dual monaural. , The input unit 1 is set in advance to respond.

When the recording of one title is started and the multiplexing method of the multiplexed audio signal is determined to be stereo from the multiplexing method information, the input unit 1 selects the Lch audio signal and the Rch audio signal from the input audio signal. After that, when it is determined from the multiplexing method information that the multiplexing method has switched from stereo to dual monaural within the same title, the input unit 1 generates a duplicate of the Lch audio signal from the Lch audio signal of the input audio signal. That is, a duplicate of the Lch audio signal is generated as the stereo Rch audio signal. Thus, the output audio signal can be substantially switched from the stereo audio signal to the dual monaural main audio signal while the multiplexing system of one title is set to stereo.

The same applies when the user sets the selection of the sub audio signal. That is, when it is determined from the multiplexing method information that the multiplexing method has switched from stereo to dual monaural in the same title, a duplicate of the Rch audio signal is generated from the Rch audio signal of the input audio signal. In this way, the output audio signal can be substantially switched from the stereo audio signal to the dual monaural sub audio signal while the multiplexing system of one title is set to stereo. Further, even when the multiplexing system of the multiple audio signals is switched from stereo to monaural, the output audio signal can be substantially switched from stereo to monaural while the multiplexing system of one title is set to stereo.

On the other hand, when recording in conformity with the DVD video recording standard, the number of audio channels can be changed in the middle of broadcasting. Even if the multiplexing method of the multiplexed audio signal is switched from stereo to dual monaural, the number of encoded channels and audio attributes are changed to handle this, so there is no trouble as in conforming to the DVD video standard.

However, in this embodiment, the DVD
In order to set an audio system common to both the video standard and the DVD video recording standard, dual monaural recording is not performed. Similar to the DVD video standard, either the main audio or the sub audio is selected and recorded.

The image / audio recording apparatus, when the image information and the audio information are compression-encoded by the encoding section 2 in order to generate the PES common to the DVD video standard and the DVD video recording standard, the number of pixels of the image, Audio compression method,
The compression rate and the like are common. For example, the number of pixels in the image is
An effective pixel number is selected according to both standards such as 720 (horizontal) × 480 (vertical). The audio compression method is also the linear PCM method, Dolby digital method, or M
PEG method, etc. shall be effective in both standards and shall be in stereo format or monaural format. Furthermore, the compression rate and the number of quantization bits are also valid values in both standards.

In both standards, there are differences in the number of image pixels, audio compression method, and the like. In order to make data that can be used in common by both standards, it is necessary to limit to only the compression method and the like existing in both standards. If not, re-conversion is required. For example, in the DVD video recording standard, there is an audio mode called a dual monaural format that is compatible with bilingual broadcasting, but it is not in the DVD video standard. In the case of bilingual broadcasting, it is necessary to select either the main audio or the sub audio, and record in a sound system that can be compatible with the DVD video standard such as a monaural broadcast format. If the program data input in this way is recorded by a method that can comply with either standard, it can be recorded without reconversion.

Further, in the image / audio recording apparatus method, in order to generate the common information of the both standards, the information such as the data size of the recording unit of the compression-encoded PES and the I picture size are made common. Information of image data is shared as information commonly used in both the DVD video standard and the DVD video recording standard. Data such as the data size of the recording unit of PES and the I picture size are important data for generating navigation information, but can be data commonly used by both standards. Therefore, if it is generated later as common information that can be referred to the data adapted to each standard, each standard can be easily adapted.

Further, the correspondence to the DVD video standard will be described. In that case, in order to reproduce the data recorded on the recording medium A7 of the above-mentioned audiovisual recording apparatus, it is necessary to use DV.
It must be recorded in the file structure defined by the D-video standard. For example, when it is desired to fast-forward the program stream (PS) format stream data recorded on the recording medium A7, the address information indicating the position of the preceding and following video reproduction units must be written for the navigation defined in the DVD video standard. I won't. Therefore PS
In addition to encoding in the format, it is necessary to generate navigation information and embed it at the required position. Therefore, additional information such as navigation information unique to the DVD video standard is created at the same time as the encoding and recorded on the recording medium A7, so that the fast-forward reproduction can be appropriately performed when the recording medium A7 is reproduced by a DVD player or the like.

FIG. 2 shows the MPEG-PS format which is the presentation data defined by the DVD video standard. A PS format stream is converted into VOB (Vid
Call it eoObject). The VOB is divided into cells, which are playback control units from navigation. Ce
ll is VOBU (Video Object Uni) which is the minimum access unit of presentation data.
t). VOBU is an NV_PCK (Naviga) that contains navigation information for playback.
section pack) and V for video data
_PCK (Video Pack) and A_PCK (Audio Pack) for audio data are included. Reference numeral 21 in FIG. 2 indicates a PS format stream.
23 and 24 are NV_PCK, 25 is V_PCK, 2
6 indicates A_PCK. Also from 22 NV_PCK,
1 VOBU is located just before the NV_PCK of 23. The size of the pack in the DVD video standard is the size of one sector which is a unit for reading data from a DVD disc, that is, 2048 bytes. 1Pack consists of 1 packet excluding NV_PCK. NV_PCK is PCI (Pres
entation Control Information
Ion) packet and DSI (Data Search)
Information) packet.

FIG. 3 shows the contents of DSI in which address information for reproduction control is stored in NV_PCK.
Will be described with reference to. FIG. 3 shows a DSI packet 31 which is address information prepared for special reproduction. V_PCK after NV_PCK is normally DV
The compressed image data of the I picture in the D video standard is written at the beginning. That is, if the address information in which the next NV_PCK is stored is known, the location in which the I picture is stored can be specified. Therefore, it is composed of a jump destination VOBU address corresponding to variable speed fast forward and rewind.

As seen from the NV_PCK 23 in FIG. 2, the NV_PCK 22 immediately before is described in the previous VOBU address 37, and the NV_PCK 24 after 1 is described in the next VOBU address 36. Similarly, when one VOBU is designed as a reproduction unit of 0.5 seconds, VOBU addresses before and after 0.5 seconds, 1 second, etc. are described. In this way, fast-forwarding can be realized by playing back the points indicated by this address one after another in fast-forwarding reproduction or the like.
Further, the reference picture # 1 end address 32 in FIG.
V_PC in which the final data of the first encoded reference picture (first I picture) after the I packet is described
The address of K is described. Further, the reference picture # 2 end address 33 describes the address of V_PCK in which the final data of the second coded reference picture (I picture or P picture) after the DSI packet is described. Therefore, by referring to the desired NV_PCK address information and the DSI packet of the NV_PCK, the data recording position of the I picture can be identified.

Therefore, the encoding unit 2 uses NV_PCK when recording on the recording medium A7 according to the DVD video standard.
It is necessary to record while adding the information of. It's not just about creating video and audio streams. Therefore, the unique information generation unit 4 uses the N
The V_PCK information is sequentially generated. The address information before and after, etc., must be stored in the temporary storage unit 5. Then, NV_PCK different from the video and audio streams is added and recorded from the recording medium input / output unit 6.

Further, the support for the DVD video recording standard will be described. In that case, in order to reproduce the data recorded on the recording medium A7 of the above-mentioned audiovisual recording apparatus, it is necessary to record the data with a file structure defined by the DVD video recording standard. For example, the PS format stream data recorded on the recording medium A7 is
When the designated reproduction is to be performed according to the time information, it is necessary to create and write a time map in which address information corresponding to each time stamp defined in the DVD video recording standard is collected. Therefore, the encoding unit 2
Requires the work of encoding with the PS system and generating and writing the time map information. This time map information is created by the common information generation unit 3 and stored in the temporary storage unit 5.
To store. Then, the time map information unique to the DVD video recording standard is generated. Therefore DV
Additional information such as time map information unique to the D video recording standard is created at the same time as the encoding, and the recording medium A
By recording the data in the recording medium A7, when the recording medium A7 is reproduced by a DVD video recorder or the like, it is possible to appropriately reproduce or edit the designated time point.

The DVD video recording standard is premised on a system for performing real-time recording.
According to the video recording standard, NV_PCK is not used, but the playback time of all VOBUs, size information, and size information of the first I picture are managed and used for stream access. As shown in FIG. 5, VOBI (VOBI
information 41, VOBU (D in FIG. 4)
The pointer information indicating the address of VOBU on the VD video recording standard), the reproduction time TIME of one VOBU 42, one VOBU size information SIZE, and the size I-SI of the first I picture.
ZE is described. This serves as mapping information of where the stream data 51 is located. Fast-forward reproduction can be realized by sequentially sending to the decoder only the data necessary for decoding the head I picture of the VOBU to be displayed using these information. At the time of real-time recording, these pieces of information are held in a memory that can be referred to by the encoder unit 2 and are written to the recording medium A7 after the recording is completed.
It is possible to add this information. This V
A value of about 0.5 seconds is adopted as one unit of OBU. However, smaller values are possible if higher-capacity encoding and decoding are possible.

Therefore, when recording on the recording medium A7 in accordance with the DVD video recording standard, the encoding section 2 temporarily stores the reproduction information in units of VOBU in the temporary storage section 5, and when recording of video or audio data is completed, etc. Need to record. It's not just about creating video and audio streams. Furthermore, RDI (Real-ti) indicating real-time information is
The information unique to the DVD video recording standard called "Me Data Information" is recorded in each VO.
Must be added to the beginning of BU. Actually, it is recorded as RDI_PCK as shown in FIG. RDI_P
The start start time and end time of the next VOBU, DCI (Display Control Inf) are stored in CK.
4: 3 or 16: 9 aspect ratio information for image output, presence / absence of subtitle information, film camera mode format indicating film material or camera material, and CCI (Copy Control Information).
information) that manages copyright and is called CG.
MS (Copy Generation Management)
It is necessary to store information such as "ment System" (note that in the DVD video standard, information such as an aspect ratio is collectively written as information called a video title set, and these information are written in VOBU units. Information cannot be changed). This means that the information regarding recording can be appropriately changed in units of VOBU even during recording, and it is necessary to set and write this value correctly. Furthermore, this RD
Manufacturer-specific information can be recorded in I_PCK. For example, it is possible to write link information to an external file and refer to it for image display and audio reproduction of a method not defined by the DVD video recording standard. Therefore, the unique information generation unit 4 determines that the RDI_PCK
It has a function of generating information. VOBU in the DVD video recording standard is RDI_
In addition to PCK, it is composed of V_PCK and A_PCK that are data for audio for video as in the DVD video standard.

In this apparatus, it is specified how the contents on the disc are to be viewed, and a menu is generated. Therefore, it is assumed that the apparatus records information necessary for generating a menu, such as a title name, recording date and time, a pointer to a representative image, and does not use highlight information unique to the DVD video standard. As shown in FIG. 6, the program corresponding to the program manages the menu data. Playback position information for creating pointer information to a representative image called a thumbnail, program name, recording date and time, creating a menu display section, and designating a frame for playing the actual image of the menu screen of the program To store.
These are generated by the common information generation unit 3.

Next, the contents of program editing will be briefly described with reference to FIG. First, one logical recording unit is defined as a program. In FIG. 7, three types of programs (62-
64). It corresponds to one TV program or the like.
A program set 61 is a collection of all the programs in the disc, which is a recording medium, and only one exists in each disc. The order of the programs in the program set is defined, and a new program is added to the end every time a program such as a movie is newly recorded. Then, a desired portion is extracted from all the recorded programs, arranged in a desired order, and a playlist for instructing reproduction is generated. In this example, first, the play list 65 is defined by arranging the beginning portion, the latter half portion, and the program # 3 (64) of the program # 1 (62) in order. Assuming a commercial, a news program entered in the middle of the program, etc., the part where this reproduction is cut is suppressed as unnecessary when reproducing only the main part. In this way, the playlist is defined and managed separately from the program set, and no matter how it is edited, the program set itself is not operated, so the main body is not damaged. This playlist editing is unique to the DVD video recording standard, and is generated by the unique information generating unit 4.

The playlist is unique to the DVD video recording standard, but the programs and program sets are common to both standards. Recording medium A7
May be used as a rewritable medium, and the CM portion or the like may be cut from the recorded program itself. A recording unit, which is a program, is recorded in units that can be divided for editing, such as seconds. This is because it is difficult to edit the recorded program later with different recording units. For example, if you try to edit a break in program editing while minimizing audio breaks, the recording unit is the same, and if the image and audio are complete,
Easy to connect later. However, if this is not taken into consideration, even when the CM is cut, a discontinuity of an image or a sound occurs in the middle of the scene, which is unsightly during reproduction. Therefore, by recording the recording unit in units such as seconds, which are supposed to be edited, there is an effect that editing work is easy and reproduction is not unsightly. If the recording unit is recorded in units that can be divided for editing such as seconds, division and combination are easy.

Further, even when a playlist is generated, the present video / audio recording apparatus can record a recording unit, which is a program, in a divisible unit for editing, for example, in seconds. Easy to connect with. However, if this is not taken into consideration, even when the CM is cut, a discontinuity of an image or a sound occurs in the middle of the scene, which is unsightly during reproduction. Therefore, by recording the recording unit in units such as seconds, which are supposed to be edited, the playlist editing work is easy and the reproduction is not unsightly.

Furthermore, in the present embodiment, when the PES is generated by encoding, by encoding at a fixed bit rate, for example, the amount of data per recording unit is increased in order to facilitate editing in seconds or the like. Are made the same or encoded at a variable bit rate, but the amount of data per editing unit such as seconds is made constant, and padding is used when there is a shortage.

This is because when the recorded program is edited,
This is because it is difficult to edit with different recording units. Therefore, at the time of encoding at a fixed bit rate, if recording is performed so that the recording data amount is constant in units of seconds, it is easy to divide into recording units. Even if the variable bit rate is used, if recording is performed so that the recording data amount is constant in units of seconds, it is easy to divide into recording units. If the shortage is defined as data that is ignored during decoding, which is defined as padding, no problem occurs during playback.

Next, the structure of the VOBU on the recording medium in the image and sound recording apparatus of this embodiment will be described.
As shown in FIG. 8, V_PCK and A_P common to both standards
CK, NV_PCK required for the DVD video standard, and D
RDI_PCK required for VD video recording standard
A VOBU consisting of And RDI_PCK
It doesn't matter which is first, NV_PCK, but V_
Place it ahead of PCK or A_PCK. And D
The VOBU address in the SI packet is NV_P above.
The address indicates the position of CK. See also VOBU_MA
Pointer information indicating the address of VOBU is necessary for P, but this is information indicating the address of RDI_PCK. Therefore, when playing back with the DVD video standard,
When reproducing the data obtained from NV_PCK and reproducing according to the DVD video recording standard, RDI_PC
The address information is generated so that the information obtained from K can be reproduced.

Even if such a VOBU is set, in the DVD video standard, RDI_PCK is undefined information and is ignored during reproduction, so that it does not affect reproduction. On the other hand, NV_PCK does not affect the reproduction because it is undefined in the DVD video recording standard and is ignored during reproduction.

A case in which PS format encoding is performed by using the present image and sound recording apparatus to support stream data complying with the DVD video standard and the DVD video recording standard will be described with reference to the flowchart of FIG. First, as encoding condition settings, compression degree of image and sound,
Image reproduction method (NTSC or PAL), number of pixels in the image,
The audio compression method (Dolby Digital system, MPEG1 layer 2 system, linear PCM system, etc.), the number of audio channels (monaural or stereo), etc. are set (S9).
1). Then, stream data of image data and audio data is generated (S92). The stream data including the image data and the audio data is accumulated in the buffer in the recording medium input / output unit 6 or the like (S93), and if the encoded data is accumulated to the extent that the address information of the preceding and following VOBU can be determined, NV_ is added to the accumulated stream data.
Since the address information including the PCK information can be determined,
NV_PCK information required for the DVD video standard is generated (S94).

Further, in order to comply with the DVD video recording standard, a VOB indicating position information of the VOBU and the like.
I time map information is generated (S95), and each VOBU
All the time information and the like are stored in the memory of the temporary storage unit 5. Then, the information of RDI_PCK is generated (S9
6). V_PCK and A_PCK, NV_PCK and RD
I_PCK is recorded on the recording medium A7 (S97). The encoding and recording work is continued until the encoding is completed due to the end of the program recording time (S98). Finally VOB
The I information is recorded on the recording medium A7 (S99).

The above V_PCK and N_PCK are common information, and NV_PCK and RDI_PCK are unique information. When recording on the recording medium A7, as shown in FIG. 8, stream data is created in the form of a VOBU in which unique information is inserted, and is recorded on the recording medium A7 or the like from the recording medium input / output unit 6. It is a thing.

When dubbing the recorded contents from the recorded recording medium in which the recorded programs are edited to another recording medium, the PES and common information common to both standards and one selected standard are supported. It can be configured to transfer only proprietary information. At this time, NV_PCK and RDI_PCK may be dubbed to another recording medium as stream data. Alternatively, by replacing one of the unnecessary information as the padding information, the dubbing of the stream data can be executed without performing new encoding.

Common information corresponding to both standards and unique information are once recorded on a rewritable recording medium, and when dubbing onto another recording medium, the common information and the unique information specific to one of the selected standards are recorded. By recording only each unique part, the information necessary for reproduction can be recorded without losing the extra recording area.

The recording medium can be provided in two types: one in which recording conforms to only one standard and the other in which both unique information is recorded so that reproduction is possible in both standards. When the original information corresponding to both the DVD video standard and the DVD video recording standard is recorded on the same recording medium, by referring to one of the original information at the time of reproduction, the reproduction conforming to the selected standard is performed. I do. By recording both the information common to both standards and the unique information on the same recording medium, it is possible to provide a recording medium that can be reproduced by either standard, and at the same time, record the information recorded on this recording medium. In addition, it can also be a recording medium for a master that provides recording information conforming to either one of the standards.

From the recording medium A7 in which the unique information of both standards is recorded, one of the standards (for example, DVD video standard)
The configuration of the recording medium when dubbing to the recording medium B8 which records only the unique information conforming to the above will be described.

After recording once on a rewritable recording medium A7 such as a DVD-RAM and cutting and editing the CM portion, etc., a DVD is recorded on a recording medium B8 such as a DVD-R.
By recording only the common information and the unique information according to the video standard, it is possible to easily convert the format into the format of the DVD video standard that can be reproduced by other DVD player devices. Therefore, since the data for the DVD video standard can be easily created, the data recorded on the rewritable recording medium A7 can be recorded at high speed without reconversion.

The rewritable recording medium A7 does not have to be removable. If it is composed of something like a hard disk, it will be convenient for recording, editing, and playing again and again.
A removable recording medium such as a DVD has a limited recordable recording capacity. Therefore, if a recording medium is once recorded on a hard disk having a larger recording capacity, edited, and then dubbed onto a removable recording medium which can be easily reproduced by another DVD player or the like, a CM portion or the like unnecessary for reproduction can be obtained. You can record the program after cutting.

In the above-mentioned image and sound recording device, the recording medium A7
If the hard disk is rewritable many times but cannot be removed, stream data having common information may be recorded. Once the PS format stream data is once recorded on a hard disk, it is sent to another writing device via the communication function.
In some cases, the other party's device writes the PS format stream data. Even in such a case, the recording medium need not be removable. Therefore, when the recording medium operates not only by itself but also by another device through the communication function, the recording medium can be configured as a fixed type such as a hard disk, and can be stored in a collective management that is difficult to be tampered with.

In the video / audio recording apparatus described above, the recording medium A
7 has a function of writing the stream data recorded in the program stream 7 into a removable recording medium B8 connected to the recording medium input / output unit 6. If the second recording medium B8, which can be attached and detached, is connected and written out after performing edit work from the PS format stream data recorded on the recording medium A7 and cutting unnecessary portions, for storage Alternatively, stream data to be reproduced by another device is put into the second recording medium B8, and only data that is erased once viewed is deleted from the first recording medium A7.
You can put it in. Therefore, the recording medium can be used properly according to the intended use.

In the above embodiment, the removable recording medium is DVD-RAM or DVD-R. However, the removable recording medium may be a magnetic recording medium, a magneto-optical recording medium (MO), which is removable from the recording device and the reproducing device.
It may be a semiconductor memory or a magnetic tape.

(Second Embodiment) Next, the configuration and operation of the image and sound recording apparatus of the present embodiment will be described.
The configuration of the image / audio recording device of the second embodiment is the same as the configuration of the image / audio recording device of the first embodiment described above.

A supplementary description will be given of the case where the input section 1 receives a digital TV broadcast or the like. A plurality of programs are received in a multiplexed state. From the multiplexed MPEG-TS (transport) format, compressed image data, compressed audio data, etc. for a specific program are selected and input. Then, the input TS format stream data is output to a decoder unit (not shown).

At the same time as the decoding section reproduces the TS format stream data, the encoding section 2 generates PS format stream data. The generated PS format stream data is recorded on the recording medium A7 from the recording medium input / output unit 6. Since playback of the PS format stream data recorded on the recording medium A7 is considered by a DVD player or the like, as described above, the DVD video standard and D
Recording is performed in a format that conforms to the VD video recording standard.

Further, the conversion from the TS format to the PS format audio will be described. Video and audio recorder is DVD
It is assumed that the video standard or the DVD video recording standard is supported. In that case, the structure of the data such as the audio signal recorded on the recording medium A7 is DVD.
It must be encoded with the data of the sampling frequency specified by the video standard, etc. (In the case of compressed data, the linear PCM after decoding it)
Refers to the sampling frequency when the). However, if the sampling frequency of the audio input in digital TV broadcasting or the like is different from this, it is necessary to decode the received audio once and then resample and encode the audio in a method conforming to the above standards. For example, BS
The sampling frequency used in digital broadcasting is 3
There are 2KHz and 48KHz, but DVD video standard and D
The VD video recording standard is only 48 KHz. Even the DVD audio standard cannot handle 32 KHz. Therefore, TS format stream data received in a format not used in the DVD standard, etc. is further converted into PS format in D format.
It has the effect that the data sampled at the sampling frequency that can be reproduced by VD can be recorded on the recording medium.
This sampling conversion unit (not shown) is configured in the encoding unit 2, for example, and when the sampling frequency of the input sound is different from that of each DVD standard, it performs sampling conversion and encoding.

The same applies not only to audio but also to images. For example, it is assumed that the video / audio recording apparatus described above is compatible with the DVD video standard or the DVD video recording standard. In that case, the above recording medium A7
The structure of the data such as the image signal recorded in 1 needs to be encoded with the data of the number of pixels defined by the DVD video standard or the like. However, if the number of pixels of an image input in digital TV broadcasting or the like is different from this, it is necessary to decode the image once, then convert it into a pixel conforming to the above standard, and encode it. For example, the number of HD format pixels used in BS digital broadcasting is 192
0 (horizontal) × 1080 (vertical), which is 720 in the normal DVD video standard or DVD video recording standard.
(Horizontal) × 480 (vertical).

Even if the number of pixels of the image data input by TS is the NTSC system of 720 (horizontal) × 480 (vertical), in order to make this the PS system of the DVD video standard of the PAL system, It is necessary to convert into the number of pixels of 720 (horizontal) × 576 (vertical). Therefore, if the number of pixels that is not used in the DVD standard is received, or if you want to record with a number of pixels that is different from the number of pixels that have been received, the received TS format stream data can be further reproduced in DVD in PS format. After being converted into a number, it is re-encoded and recorded on the recording medium A7.

In the above video / audio recording apparatus, when the TS format stream data is decoded and the PS format stream data is generated and recorded on the recording medium A7 such as a DVD, the recordable capacity of the recording medium A7 is set. In view of this, the compression ratio of the recordable image data or audio data is calculated and encoded from the recordable capacity.

It is assumed that the video / audio recording apparatus described above is compatible with the DVD video standard and the like. For example, assume that the program broadcast time for receiving stream data in TS format is known in advance by reserved recording and the recordable capacity of a recording medium for recording stream data in PS format is known in advance. If the recording medium for recording the stream data in PS format is a detachable DVD disc, in order to meet the demand to store one reserved program in one disc, one movie program with the highest image quality is possible. , You should record using the full recording capacity of the disc. Therefore, the compression ratio of the image data or audio data of the recorded program is calculated from the recordable capacity of the assumed recording medium, and one program is recorded at a bit rate (low compression rate) as high as possible.

In the above, the first and second embodiments have been described in detail.

Although the program elementary stream generating means of the present invention is a means including the encoding section 2 in the above-mentioned embodiment, the present invention is not limited to this. In short, image data input from the outside is essential. and/
Or by performing a predetermined compression encoding on the audio data,
Any means may be used as long as it is a means for generating a program elementary stream common to a plurality of predetermined standards.

Further, the unique information generating means of the present invention is a means including the unique information generating section 4 in the above-mentioned embodiment, but the invention is not limited to this, and in short, each of a plurality of standards. Any means may be used as long as it is a means for generating unique information unique to each standard.

Further, although the common information generating means of the present invention is the means including the common information generating section 3 in the above-mentioned embodiment, it is not limited to this, and in short, it is common to a plurality of standards. It may be any means for generating information.

Further, the recording means of the present invention is a means including the recording medium input / output unit 6 in the above-mentioned present embodiment, but the present invention is not limited to this, and in short, in a predetermined recording medium, (a) ) A means for recording the generated program elementary stream, (b) the generated unique information, and (c) the generated common information may be used.

That is, the data recording apparatus of the present invention is the same as the video / audio recording apparatus (DV) in the above-described embodiment.
However, the present invention is not limited to this, but in short, the image data and / or the audio data input from the outside are subjected to a predetermined compression encoding, and a program program common to a plurality of predetermined standards is used. Program elementary stream generating means for generating a mental stream, unique information generating means for generating unique unique information for each of a plurality of standards, and common information common to a plurality of standards Common information generating means for performing the above, on a predetermined recording medium, (a) the generated program elementary stream, (b) the generated unique information, and (c)
It is a data recording device comprising a recording unit for recording the generated common information.

The invention is based on all or part of the above-described data recording apparatus of the present invention (or device, element,
A program that causes a computer to execute the functions of circuits, units, and the like, and is a program that operates in cooperation with the computer. Of course, the computer of the present invention is not limited to pure hardware such as a CPU,
It may include firmware, OS, and peripheral devices.

The present invention also provides all or some of the steps (or steps) of the above-described data recording method of the present invention.
It is a program for causing a computer to execute an operation (operation, action, etc.), and is a program that operates in cooperation with the computer.

Note that some means (or devices, elements, circuits, sections, etc.) of the present invention, and some steps (or steps, operations, actions, etc.) of the present invention are performed by a plurality of these means or It is meant to refer to some means or steps in a step, or to some functions or some operations in one means or step.

Further, some devices (or elements, circuits, parts, etc.) of the present invention mean some devices of the plurality of devices, or some means of one device. (Or, an element, a circuit, a part, etc.) or a part of the functions of one means.

Further, the present invention also includes a computer-readable recording medium in which the program of the present invention is recorded. Further, one usage form of the program of the present invention may be a mode in which the program is recorded in a computer-readable recording medium and operates in cooperation with the computer. Further, one usage form of the program of the present invention may be a mode in which the program is transmitted through a transmission medium, read by a computer, and operates in cooperation with the computer. The recording medium includes a ROM and the like, and the transmission medium includes a transmission medium such as the Internet and light, radio waves, sound waves and the like.

The configuration of the present invention may be realized by software or hardware.

Further, the invention is a medium carrying a program for causing a computer to execute all or some of the functions of all or some of the means of the above-described data recording apparatus of the present invention, which is readable by the computer and The read program is a medium that executes the function in cooperation with the computer.

Further, the present invention is a medium carrying a program for causing a computer to execute all or some of the operations of all or some of the steps of the above-described data recording method of the present invention, which is readable by the computer. The read program is a medium that executes the operation in cooperation with the computer.

Therefore, according to the present invention, for example, the input image and audio information are encoded to generate the program elementary stream (PES) common to the DVD video standard and the DVD video recording standard, and the standards are different from each other. In addition to uniquely generating certain information, common information such as navigation information commonly used in each standard is generated and recorded in a recording medium.

If the recording medium is a medium such as a DVD-RAM and recording is performed in accordance with the DVD video recording standard, a DVD video recording standard disc which can be easily reproduced by another DVD video recorder can be generated.
If recording is performed on a medium such as DVD-R and in accordance with the DVD video standard, it can be reproduced on another DVD player device. Also, after receiving and once recording on a rewritable recording medium and cutting and editing the CM part, etc., D
It can be easily converted into a format of the DVD video standard which can be easily reproduced by a VD player or the like.

Therefore, for example, stream data for the DVD video standard that can be reproduced by a DVD player can be easily created from PS format stream data in which a television broadcast or the like is recorded, and thus DV encoding can be performed without re-encoding.
Stream data compatible with the D video standard or the DVD video recording standard can be recorded at high speed.

[0107]

As is apparent from the above description,
The present invention allows, for example, a TV while allowing easy editing.
It has an advantage that a program can be recorded on a DVD disc at high speed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an image / audio recording device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the structure of a stream in the DVD video standard.

[Fig. 3] DS of NV_PCK in the DVD video standard
Explanatory drawing showing structure of I packet

FIG. 4 is an explanatory diagram showing a stream structure in the DVD video recording standard.

FIG. 5 is an explanatory diagram showing a data structure of the DVD video recording standard.

FIG. 6 is a menu reference diagram of the image / audio recording method according to the first embodiment of the present invention.

FIG. 7 is a diagram showing an editing procedure of the image / audio recording method according to the first embodiment of the invention.

FIG. 8 is an explanatory diagram showing a structure of a program stream according to the first embodiment of the present invention.

FIG. 9 is a flowchart showing an operation procedure of the image / audio recording method according to the first embodiment of the invention.

[Explanation of symbols]

1 Input section 2 Encoding section 3 Common information generator 4 Unique information generator 5 Temporary storage 6 Recording medium input / output section 7 Recording medium A 8 Recording medium B

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Claims (16)

[Claims] 1. Image data inputted from the outside and / or
Or by performing a predetermined compression encoding on the audio data,
A step of generating a program elementary stream common to a plurality of predetermined standards, a step of generating unique information unique to each standard of the plurality of standards, and a step of generating common information common to the plurality of standards And a step of recording (a) the generated program elementary stream, (b) the generated unique information, and (c) the generated common information on a predetermined recording medium. Prepared data recording method. 2. The predetermined compression encoding is compression encoding corresponding to the DVD standard, the plurality of standards is a DVD video standard and a DVD video recording standard, and common information common to the plurality of standards. The data recording method according to claim 1, wherein is information including navigation information regarding a recording position of the generated program elementary stream on the predetermined recording medium. 3. The data recording method according to claim 2, wherein the compression encoding is performed using a pixel number, an audio compression method, and a compression rate common to the DVD video standard and the DVD video recording standard. 4. The compression encoding is performed using a data size of a recording unit of the generated program elementary stream, which is common to the DVD video standard and the DVD video recording standard. Data recording method. 5. The DVD video standard for indicating the positional relationship between the continuous images when the image data is input from the outside as data having a plurality of temporally continuous images. The data recording method according to claim 2, wherein the data recording method is generated so as to include unique information. 6. The DVD video recording for indicating the positional relationship between the continuous images when the image data is input from the outside as data having a plurality of temporally continuous images. The data recording method according to claim 2, wherein the data is generated so as to include information unique to the standard. 7. The data recording method according to claim 2, wherein the recording of the program elementary stream on the predetermined recording medium is performed by using a recording unit capable of editing in units of seconds. 8. The data recording method according to claim 7, wherein the generation of the program elementary stream is performed by using encoding at a fixed bit rate such that the data amount for each recording unit is substantially the same. 9. The data according to claim 7, wherein the generation of the program elementary stream is performed using variable bit rate encoding using padding so that the amount of data for each recording unit is substantially the same. Recording method. 10. A step of dubbing from a predetermined recording medium on which recording is performed to another recording medium, wherein the dubbing is unique information unique to the DVD video standard and unique to the DVD video recording standard. The data recording method according to claim 2, wherein only one of the unique information is copied to the another recording medium. 11. A step of dubbing from a predetermined recording medium on which the recording is performed to another recording medium, wherein the dubbing is unique information unique to the DVD video standard and unique to the DVD video recording standard. The data recording method according to claim 2, wherein both of the unique information are copied to the other recording medium. 12. A medium on which both the unique information unique to the DVD video standard and the unique information unique to the DVD video recording standard recorded by the data recording method according to claim 11 are recorded. . 13. A program elementary stream for subjecting image data and / or audio data input from the outside to predetermined compression encoding to generate a program elementary stream common to a plurality of predetermined standards. Generating means, unique information generating means for generating unique information unique to each of the plurality of standards, common information generating means for generating common information common to the plurality of standards, A recording means for recording (a) the generated program elementary stream, (b) the generated unique information, and (c) the generated common information on a predetermined recording medium. Data recorder. 14. The predetermined compression encoding is compression encoding corresponding to a DVD standard, the plurality of standards is a DVD video standard and a DVD video recording standard, and common information common to the plurality of standards. 14. The data recording apparatus according to claim 13, wherein is information including navigation information regarding a recording position of the generated program elementary stream on the predetermined recording medium. 15. A program elementary common to a plurality of predetermined standards by performing predetermined compression encoding on image data and / or audio data input from the outside according to the data recording method of claim 1. A step of generating a stream, a step of generating unique information unique to each of the plurality of standards, a step of generating common information common to the plurality of standards, and a predetermined recording medium,
To cause a computer to execute all or part of the steps of (a) recording the generated program elementary stream, (b) the generated unique information, and (c) the generated common information. Program of. 16. A program elementary common to a plurality of predetermined standards, which is obtained by performing predetermined compression encoding on image data and / or audio data input from the outside according to the data recording method of claim 1. A step of generating a stream, a step of generating unique information unique to each of the plurality of standards, a step of generating common information common to the plurality of standards, and a predetermined recording medium,
To cause a computer to execute all or part of the steps of (a) recording the generated program elementary stream, (b) the generated unique information, and (c) the generated common information. A medium which carries the program of, and which can be processed by a computer.