Startup uses Napster-type software to block swapping

DallasNews: “MediaDefender, a division of Laguna Beach-based OnSystems Inc., has created software to track and block online trading of songs and other copyrighted materials. Def Leppard, the British group famous for its ’80s hits “Pyromania” and “Photograph,” recently hired MediaDefender to track and prevent online copying of its works.”