Patent ID: 6134383
Filing Date: 2000-10-17
Classification: G06F,G11B,H04N

Abstract:
A recording medium, readable by a machine, tangibly embodying a package of data for access by an application mechanism, said package comprising:a plurality of data units for presenting playback objects when said recording medium is read by said machine, said playback objects including an MPEG video stream, a specialized audio stream other than an MPEG audio stream, and a sub-picture stream, wherein each of said data units includes,a data pack train having a navigation data pack positioned at a head of the data pack train, and at least one or a combination of a video data pack constituting a part of the MPEG video stream, an audio data pack constituting a part of the audio stream, and a sub-picture data pack constituting a part of the sub-picture stream, whereinsaid 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 including a first stream identifier for indicating that the video data in the video data packet belongs to the MPEG video stream,said audio data pack is configured to have the same size as that of the video data pack and essentially consists of one pack header and one audio packet, said audio packet having an audio packet header, a first sub-stream identifier, and audio packet data corresponding to an audio data segment of the specialized audio stream, said audio packet includes a second 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 specialized audio stream,said sub-picture data pack is configured to have the same size as that of said video data pack and essentially consists of a pack header and a sub-picture packet, said sub-picture packet having a sub-picture packet header and sub-picture packet data corresponding to a sub-picture data segment of the sub-picture data stream, andsaid navigation data pack is configured to have the same size as that of the video data pack and essentially consists of a pack header, a system header, and first and second control data packets, said first control data packet having a first control packet header, a second sub-stream identifier, and a first control packet data, said first control packet header including a third 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 said second control packet having a second control packet header, a third sub-stream identifier and second control packet data, said second control packet header including the third stream identifier for indicating that said second control packet data belongs to a private stream 2 other than the MPEG video and audio streams, wherein a combination of said third stream identifier and said second 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 third stream identifier and said third sub-stream identifier indicates that said second control packet data corresponds to search data for searching said data units wherein said search data includes search addresses of said data units and an end address of a last pack in each of said data units.