198674 ⎘
Signal processing not specific to the method of recording or reproducing; Circuits therefor; Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is provided by a software application accessing the medium
METHOD FOR MANAGING COPY PROTECTION INFORMATION OF RECORDING MEDIUM
#2Digital media distribution system
#3Information processing apparatus and method, information recording medium manufacturing apparatus and method, and information recording medium
#4Method and apparatus for protecting shared data and method and apparatus for reproducing data from recording medium using local storage
#5Digital media cartridge system and method