Sorry, I linked to the earlier posts on peerflix that go into great detail on this. I was expecting this, and wrote quite a bit about how Peerflix should differ in order to deal with this situation. I wasn't expecting it quite as much, since these are all top rated movies, including a best picture nominee from just 2 years ago.

Anyway, it's now clear that the pure-trade method is not effective. Even on new releases, as the demand drops somebody will be stuck with a disk. It costs a bit more postage and overhead, but I think that disks should go back, when you're done, to the original contributor, though that contributor can have the option of letting you "hold" the disk (at risk to herself, based on your good reputation) for the next person to desire it. The key is, you put the burden for the low demand disk on the contributor, not the unlucky person who asked for it as the demand dropped.