| 摘要 |
PROBLEM TO BE SOLVED: To stabilize a playback processing even when a playback object to be played back is replaced. SOLUTION: After an application to be executed requests a package management unit to update the merge management information, the package management unit changes a file referenced from the newly specified merge management information to read-only before updating the package information, and at a point at which digital stream playback stops due to a current title change, the package management unit generates new package information in accordance with the newly specified merge management information. The package management unit performs retreat processing of parameters stored in a state register in a backup register when the current title is changed by a selection unit and initializes the backup register when the package information is renewed. COPYRIGHT: (C)2009,JPO&INPIT
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