In the future, when moving "massive" amounts of data will become obscenely easy, P2P network bandwidth will not be the only path to widespread piracy. If (when) cheap 10-terabyte wallet sized media devices become the norm, individuals will no longer pass around movies--they will pass around libraries. At 5 gigs (generous indeed) per movie a media device of that size could store 2,000 movies. This method of passing would enable a very few transactions to spread movies effeciently--thus eliminating the NECESSITY for p2p networks (although not eliminating their existence). Even the low granularity of passing data person to person will begin to reach market saturation in smaller and smaller amounts of time. If P2P bandwidth remains the same (it won't) and people begin to demand HD video, the piracy channels will be able to satiate their desire.
