Watermarking to track motion picture theft

The music industry suspects that unauthorized P2P trading of music flies has had a negative impact on revenue. The motion picture industry fears the same thing happen to movies. However, the piracy problems in these two domains are different. In this paper we take an interesting look at movie piracy as we compare it to music piracy in the two areas of the piracy source and the potential impact on revenue. We do not directly address issues of politics, business, ethics, sociology, or copyright law, but identify relatively uncontroversial areas where technology, specifically digital watermarking, can make a significant contribution.