optical diskUS6871786Nov 3, 2000Mar 29, 2005Symbol Technologies, Inc.Method and apparatus for reading and writing indicia such as bar codes using a scanned laserUS6887404Jan 15, 2002May 3, 2005Recording Industry Association Of AmericaSecurity marking system and method for minimizing pirating of data on data media including compact discs and digital versatile discsUS6888951Aug 23, 1999May 3, 2005N