DATA REPRODUCING DEVICE, DATA PROCESSING DEVICE, DATA TRANSMITTING SYSTEM, DATA REPRODUCING METHOD, DATA PROCESSING METHOD, AND DATA TRANSMITTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide data reproducing device having high security against unjust copy. SOLUTION: A drive 20 is provided with a first CSS encoder 21 performing a first coding-processing for picture data or the like produced from an optical disk D, and a second CSS encoder 22 performing a second coding-processing being different from the first coding-processing, and transmits these information. The data processing device 30 performs code releasing processing for the transmitted picture data or the like and media type information by an independent decoder respectively. And, this data processing device detects copyright control information from picture data and the like, and emits reproduction or recording of picture data or the like.