INFORMATION RECORDING MEDIUM, DATA FILE, DATA DISTRIBUTION FILE SET, INFORMATION DISTRIBUTION SERVER, INFORMATION PROCESSING DEVICE, INFORMATION DISTRIBUTION SYSTEM, AND INFORMATION DISTRIBUTION METHOD

摘要

PROBLEM TO BE SOLVED: To use the function of an AACS (Advanced Access Content System) by changing a title of a pattern, a playlist, or an AV stream prepared beforehand by a virtual file system when actually using the function of the AACS without changing a security certificate file.

SOLUTION: In the information recording medium, encrypted contents subjected to encryption processing to be managed for every content management unit as a content use management unit are recorded, and the content management unit which is used by the encrypted contents, and the content management units J, J+1 to J+8N which are not used by the encrypted contents are set.

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