From the stupid video file, here's a story about a film critic that got busted selling "screener" DVDs (for a really low amount). Surprising that he'd be so short sighted, given how easy they are to trace.
I have a friend who is an attorney, and he's defending an employee that let one of these screener DVDs "slip" to a buddy. The buddy put it on the web.
It's 2006 folks. Nothing you do online is secret.