Patent ID: 7823212

Claim:
An aggregation system comprising an aggregation apparatus, a first reproduction apparatus and a second reproduction apparatus, wherein said aggregation apparatus includes: a first obtainment unit operable to obtain a main content including video data and audio data from a first recording medium; a second obtainment unit operable to obtain a sub content including either audio data or subtitle data; and a recording unit operable to aggregate the main content and the sub content and record the aggregated contents onto a second recording medium, said first reproduction apparatus includes: a third obtainment unit operable to obtain the main content from the first recording medium; a fourth obtainment unit operable to obtain reproduction control information for controlling reproduction of the main content; and a reproduction unit operable to reproduce the main content recorded on the first recording medium and the sub content, based on the reproduction control information, so that the audio data of the main content is replaced with either the audio data of the sub content or the subtitle data of the sub content to be reproduced, and said second reproduction apparatus reproduces the main content and the sub content which are recorded on the second recording medium so that the audio data of the main content is replaced with either the audio data of the sub content or the subtitle data of the sub content to be reproduced.