| 摘要 |
PROBLEM TO BE SOLVED: To create navigation data in real time while encoding pieces of video and audio data and to simultaneously make the navigation data recordable on an optical disk. SOLUTION: Pieces of the video and audio data area packed in MPEG regulation, are stored in a video object unit 85 as a pack string to be reproduced within specified time, a video object 83 is constituted by arranging a data cell 84 consisting of plural units 85 and a navigation pack 86 is arranged at the head of the pack string of the unit 85. A data cell identification number of the unit 85 to be stored in the navigation pack 86 is set based on recordable time of one preliminarily specified data cell or recordable time of one data cell which is calculated from bit rate of the video object and recording capacity of a recording medium and actual recording time and in addition, ending time of reproduction, an ending address of reference picture are preset. COPYRIGHT: (C)2003,JPO
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