CONTENT MOVEMENT DEVICE, CONTENT MOVEMENT METHOD, COMPUTER PROGRAM, RECORDING MEDIUM, AND CONTENT MOVEMENT SYSTEM

摘要

There is provided a user-friendly content movement device capable of preventing unauthorized copying of a content and enabling a user to use a content before subjected to irreversible conversion when the content which has been irreversibly converted and moved to a recording medium is returned to the move source. A partial information extraction unit (110) extracts from a content stored in a content storage unit (104), partial data required for reproducing the content. A write/read unit (116) performs write into a partial information storage unit (304) and overwrites the part corresponding to the partial data of the content by another data. A conversion unit (107) transcodes the content and writes it in the recording medium.