78574640
Feb 24, 2005
COMPUTER SOFTWARE EMBEDDED IN OPTICAL DATA STORAGE DISKS TO DETECT AND PROTECT AGAINST UNAUTHORIZED ACCESS, MODIFICATION, TRANSFER OR COPYING OF DIGITAL TEXT, MUSIC OR DATA; COMPUTER SOFTWARE USED TO MANAGE DIGITAL TEXT, MUSIC OR DATA FILES; AND COMPUTER SOFTWARE TO IDENTIFY AND VALIDATE DIGITAL TEXT, MUSIC AND DATA
Electrical and Scientific Apparatus