System for creating, reading and writing on rotatable informatio
System for detecting rotational deviation of a rotary recording
System for detecting the operative face of a disc carrying data
System for discriminating optical discs
System for discriminating optical discs
System for encoding a glass master to enable detection of a coun
System for playing back information recorded on a disk recording
System for recording information on an optical recording medium
System for recording information onto disk medium
System for reducing lead-in time in a laser disk reproducing app
System to ascertain the scanning speed of audio disks with conta
System using radio frequency identification (RFID) for copy...
System using radio frequency identification (RFID) for copy...
System with read protecting function