Not exactly on point, but the Playstation Store now offers HD movies for download and rent. I have not done it, but i have downloaded SD TV shows and it was pretty quick even using my wireless PS3 connection (max 54 mps). Not sure this fits the thread, but if you are thinking of buying a BR player to download, this might be something to put on your radar.

Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire