198731 ⎘
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 measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode said management data being address data the address data being scrambled so that ascending address values do not reflect the physical order of data blocks
METHOD FOR COPY PROTECTION
#2Copying apparatus for copying a recoding medium, a method thereof and a computer program thereof
#3Method for data storage protection and encryption
#4Information recording processing apparatus, information reproduction processing apparatus, information recording medium, information recording processing method, information reproduction processing method, and computer program
#5Copying apparatus for copying a recoding medium, a method thereof and a computer program thereof