COPY MANAGEMENT SYSTEM, COMPUTER READABLE STORAGE MEDIUM IN WHICH INFORMATION PROCESSING PROGRAM OF CLIENT TERMINAL IS STORED, COMPUTER READABLE STORAGE MEDIUM IN WHICH INFORMATION PROCESSING PROGRAM OF MANAGEMENT SERVER IS STORED, INFORMATION PROCESSING PROGRAM OF CLIENT TERMINAL, INFORMATION PROCESSING PROGRAM OF MANAGEMENT SERVER, COPY MANAGING METHOD, INFORMATION PROCESSING METHOD OF CLIENT TERMINAL AND INFORMATION PROCESSING METHOD OF MANAGING SERVER

摘要

PROBLEM TO BE SOLVED: To prevent unauthorized copy of the contents. SOLUTION: IDs (MIDs) are attached by every optical disk and the contents are encoded and recorded by a Content-Key. A system server manages a client ID of a client terminal, an HDD-ID of an HDD and an MC-ID of a memory card, etc., owned by a user as user entry information. The user transmits the MC-ID to the system server together with the MID of an optical disk when the contents are copied. The system server specifies the user by collating the MC-ID with the user entry information and returns the Content-Key used in the case of decoding the contents. The contents recorded in the optical disk is decoded and copied in the HDD by using the returned Content-Key on the user's side. Since copy of the contents is permitted only to a normal user as an owner of the storage medium, the unauthorized copy of the contents is prevented.