INFORMATION PROCESSOR, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a data arranging configuration for ensuring a seamless reproduction in contents having segment sections including a plurality of different variation ciphering data.

SOLUTION: Regarding the contents having the segment sections constituted by the different variation ciphering data applying the individual segment keys and having non-segment sections as the ciphering data applying a unit key, positional arrangements of segment data and non-segment section constituting data are determined by the information processor so that a maximum jump distance executed at the reproduction process becomes a preliminarily set maximum jump distance or shorter. The positional arrangements of the data are determined on the basis of the jump distance taking a seek time, ECC block process time, sequence key utilizing period which is the time for changing over the keys, etc., into consideration.

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