DMCA

The basis for the Motion Picture Association of America's suit against 2,600 enterprises and others that posted computer code for circumventing DVD encryption and allowing PCs to play DVD movies. DMCA gives intellectual property holders the right to take away the fair use and related rights of the public to protect a commercial DRM scheme, and it interferes with the legitimate operation of peer-to-peer file sharing systems. It is considered by some to be unconstitutional.