198773 ⎘
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 are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches said intentional errors occurring due to an invalid TOC
Copy Protection System for Data Carriers
#2Copy Protection System for Data Carriers
#3ACCESS CONTROLLED OPTICAL DISC AND METHOD THEREFOR
#4Access Controlled Optical Disc and Method Therefor
#5Apparatus and Method for Digital Content Concealment
#6Formatting of optical discs
#7Copy protection system for data carriers
#8Security and storage system and method
#9Access controlled optical disc and method therefor
#10Copy protection system for data carriers
#11Method of copy detection and protection using non-standard TOC entries
#12Optical disk drive for driving copy-controlled CD
#13Copy protection of optical discs