Recording medium, recording apparatus and recording method for recording data into recording medium, and reproducing apparatus and reproducing method for reproducing data from recording medium

Abstract

Data is recorded in a data area of a disk in a hierarchical structure of program chains, programs, cells and packs, each pack is constructed by a pack header for identifying the pack and a packet having a data stream recorded therein, the packet has a packet header having a stream ID indicating at least a private stream and a sub-stream ID indicating the classification of the private stream described therein, and the classification indicates packet data of Dolby AC3 audio data, packet data of linear audio data, packet data of sub-picture data, or packet data of computer data.

1 . A machine-readable recording medium, encoded with machine readable data to be read by a reproducing application executed by a processing mechanism, said recording medium having a hierarchical data structure, comprising: 
 a title set area on which said package of data is recorded, said package of data comprising,    a plurality of data units representing a playback object when said recording medium is read, said data units containing an MPEG audio stream and a predetermined audio stream other than the MPEG audio stream, the MPEG audio stream comprising a plurality of audio data frames having an MPEG coding format and the predetermined audio stream comprising a plurality of audio data frames having a predetermined coding format different from the MPEG coding format, each of said data units including a data pack train containing a first audio pack and a second audio pack corresponding to the MPEG and predetermined audio streams respectively, each of the first and second audio packs have a same pack size and include a pack header and an audio data packet containing an audio packet header and audio packet data corresponding to a part of the audio data frame or frames,    wherein the first audio pack is configured with a first identifier in the packet header for identifying that the audio packet data corresponds to the MPEG audio stream, the second audio pack is configured with a second identifier in the packet header for identifying that the audio packet data corresponds to a private stream  1  defined in the MPEG standard, a third identifier disposed between the packet header and the audio packet data for indicating that the audio packet data in the private stream  1  corresponds to the predetermined audio stream, a first access pointer disposed between the third identifier and the audio packet data for indicating a first access point of the audio data frame in the audio packet data, and a number of frame headers disposed between the third identifier and the audio packet data for indicating the number of audio frames in the audio packet data; and    a management area containing recorded management information, said management information including attribute information of the MPEG and predetermined audio streams.    
   
   
       2 . The recording medium of  claim 1 , wherein the predetermined coding format corresponds to linear PCM coding and the audio packet of the predetermined pack further includes audio data information specifying an audio word length and an audio sampling frequency.  
   
   
       3 . The recording medium of  claim 1 , wherein the audio data packet further comprises numbers of frame headers arranged between the first identifier and the access pointer, the numbers of frame headers indicating numbers of the audio frames in the audio packet data.  
   
   
       4 . A machine-readable recording medium, encoded with machine readable data to be read by a reproducing application executed by a processing mechanism, said recording medium having a hierarchical data structure, comprising: 
 a title set area on which a title set information and said package of data are recorded, said package of data comprising,    a predetermined audio stream, other than MPEG audio streams, to be presented as a playback object, the predetermined audio stream comprising a plurality of audio data frames having a predetermined coding format different from the MPEG coding format, said playback object including a data pack train containing audio packs corresponding to the predetermined audio stream, each of the audio packs have a same pack size and include a pack header and an audio data packet containing an audio packet header and audio packet data corresponding to a part of the audio data frame or frames,    wherein the audio pack is configured with a first identifier in the packet header for identifying that the audio packet data corresponds to a private stream  1  defined in the MPEG standard, a second identifier disposed between the packet header and the audio packet data for indicating that the audio packet data in the private stream  1  corresponds to the predetermined audio stream, a first access pointer disposed between the second identifier and the audio packet data for indicating a first access point of the audio data frame in the audio packet data, and    said title set information including attribute information of the predetermined audio stream which corresponds to the predetermined audio coding format.    
   
   
       5 . The machine-readable recording medium of  claim 4 , wherein the predetermined audio stream is linear PCM coded audio data stream.  
   
   
       6 . A recording medium having a hierarchical data structure and encoded with machine readable data for access by an application mechanism, said package comprising: 
 a video title set including a video object to be produced by the application mechanism and a management table for said video title set,    said video object having an arrangement of video data cells, each cell being composed of video object units, and said video object unit including a MPEG video stream, MPEG and specific audio streams, and sub-pictures streams,    wherein said management table includes a video attribution, number of the audio streams in said video object, audio attributes for the respective MPEG and specific audio streams, number of the sub-picture streams in said video object and sub-picture attributes for the respective sub-picture streams, and    wherein each video object unit is comprised of a sequence of data packs, the sequence of data packs includes a combination of at least one video, MPEG audio, specific audio and sub-picture packs and a navigation pack placed at the head of the sequence, the video data pack constituting a part of the MPG video stream, the MPEG audio data pack constituting a part of the MPEG audio streams, the specific audio data pack constituting a part of the specific audio streams, and the sub-picture pack constituting a part of the sub-picture streams,    said video data pack is configured to be of a predetermined size and essentially consists of one pack header and one video packet, said video packet having a video packet header and video packet data corresponding to a video data segment of the MPEG video stream, said video packet header includes a first stream identifier for identifying that said video data in said video data packet belongs to the MPEG video stream, the first identifier provided with a video stream number for specifying the video stream,    said MPEG audio data pack is configured to have the same size that of video data pack and essentially consists of one pack header and one audio packet, said audio packet having an audio packet header, and an audio packet data corresponding to an audio data segment of the MPEG audio stream, said audio packet includes a second stream identifier for indicating that said audio packet data belongs to the MPEG audio stream, the second stream identifier provided with an audio stream number for specifying the specific audio stream,    said specific audio data pack is configured to have the same size that of video data pack and essentially consists of one pack header and one audio packet, said specific audio packet having an audio packet header, a first sub-stream identifier, and an audio packet data corresponding to an audio data segment of the specific audio stream, said audio packet includes a third stream identifier for indicating that said audio packet data belongs to a private stream  1  other than the MPEG video and audio streams, and said first sub-stream identifier indicating that said audio packet data belongs to the specific audio stream, said first sub-stream identifier provided with an audio stream number for specifying the specific audio stream,    said sub-picture data pack is configured to have the sane size that of video data pack and essentially consists of one pack header, a second sub-stream identifier, and one sub-picture packet, said sub picture packet having a sub-picture packet header and an sub-picture packet data corresponding to an sub-picture data segment of said sub-picture data stream, said sub-picture packet includes the third stream identifier for indicating that said sub-picture packet data belongs to the private stream  1 , and said second sub-stream identifier indicating that said sub-picture packet data belongs to the sub-picture stream, said second sub-stream identifier provided with an sub-picture stream number for specifying the sub-picture stream, and    said navigation data pack is configured to have the same size that of video data pack and essentially consists of a pack header, a system header, first and second control data packets, the first control packet having a first control packet header, a third sub-stream identifier, and first control packet data, said first control packet header includes a fourth stream identifier for indicating that the first control packet data belongs to a private stream  2  other than the MPEG video and audio streams and the private stream  1 , and    the second control packet having a second control packet header, a fourth sub-stream identifier, and second control packet data, and said second control packet header includes the fourth stream identifier for indicating that the second control packet data belongs to the private stream  2  other than said MPEG video and audio streams and the private stream  1 , and    wherein a combination of said fourth stream identifier and said third sub-stream identifier indicates that the first control packet data corresponds to presentation data for controlling a presentation of said data units including a playback start time data and a playback end time data, and a combination of said fourth stream identifier and said fourth sub-stream identifier indicates that said second control packet data corresponds to search data for searching the data unit wherein said search data includes search address of said data units and an end address of last pack in each of said data unit.    
   
   
       7 . The recording medium according to  claim 6 , wherein the specific audio stream comprises a plurality of audio data frames having a predetermined coding format, the audio packet data corresponds to a part of the audio data frame or frames, and the audio packet further includes a first access pointer, disposed between the first sub stream identifier and the audio packet data, configured to indicate a first access point of the audio data frame in the audio data packet.  
   
   
       8 . The recording medium according to  claim 7 , wherein the audio packet further comprises number of frame headers arranged between the first sub-stream identifier and the access pointer, the number of frame headers indicating number of audio frames in the audio packet data.