My understanding is that they don't actually have your CD, but their members do. They act as a middle-man for people to exchange CDs. I'm not positive on this, though, and I can't really look that well at the moment, because I'm writing this from my phone. I'll try to check it out later. Still, even if I am right, I'm not really sure if this is a positive, negative, or neutral thing for musicians. There's a couple of different ways to look at it...