| 摘要 |
PROBLEM TO BE SOLVED: To easily manage a file. SOLUTION: Information is partly erased by a unit of video object in a video object, and a video object unit including the boundary position of a range to be partly erased is set to be excluded from the erasing object. AV addresses are set in a video file, and the order of the AV addresses is set according to the description order of an allocation descriptor in a file entry, so that the information of the file system related to an extent is changed corresponding to the partly erasing. COPYRIGHT: (C)2007,JPO&INPIT
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