Encoding, producing and decoding methods of object data, and apparatuses for encoding, producing and decoding the object data, and programs for encoding and decoding the object data, and recording medium for the object data

摘要

When reproducing contents, which are encoded by an MPEG compressor (12) in accordance with each of a plurality of objects and recorded in a recording medium (20), a reproduction protection information based on a region or rating for each of contents is produced by a reproduction protection information generator (13). The reproduction protection information is inserted into an object signal by a control header inserter (14) or an electronic watermark inserter (16) and recorded. When reproducing the object signal, synthesizing a certain object signal, which is prohibited to reproduce by a reproduction protection information, is restricted by a reproduction protection controller (34), and then a video signal, which is permitted to reproduce is produced.