Information processing device, information recording medium, information processing method, and computer program

Abstract

A data placement configuration which ensures seamless playback of contents having segment portions including multiple different variations of encrypted data is provided. With regard to contents having segment portions configured of multiple different variations of encrypted data to which individual segment keys have been applied, and non-segment portions serving as encrypted data to which a unit key has been applied, the placement of segment data and non-segment portion configuration data is determined such that the maximum jump distance executed at the time of playback processing is equal to or less than a maximum jump distance set beforehand. Data placement has been determined based on seek time, ECC block processing time, sequence key usage time which is key switchover time, and so forth.

Description

technical field [0001] The present invention relates to an information processing device, an information recording medium, an information processing method, and a computer program. More specifically, the present invention relates to an information processing device, an information recording medium, an information processing apparatus, an information recording medium, an information processing apparatus, and an information recording medium for preventing interruption of playback due to jump processing when playing back content recorded on a disc, thereby enabling seamless content playback. Processing methods and computer programs. Background technique [0002] Various types of software data, such as audio data such as music, image data such as movies, game programs, Various types of applications etc. [0003] A data storage format is prescribed corresponding to each of various types of data, and each data is stored according to its respective format. [0004] For example, ...

AI Technical Summary

Problems solved by technology

However, the presence or absence of encoding / encryption is not described, nor is any consideration given for the case of using a different encryption key for each block

Also, in the case of parental lock, some specific paths can be passed, but in the case of identifying a device used to create an unauthorized copy, a large number of paths need to be prepared, also, from this point of view, continuous playback will is difficult unless some consideration is made for the special data placement used to perform continuous playback

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