One thing you don't think of both the blu-ray players and the hd-dvd players need to be hooked up to the internet to update there sofware. PS3 even more so. Acouple of times I've put a movie in and the PS3 messages you that you can't do every thing on the disc untill you update the system.
My PS3 is the discontinues 20gig and it is a unit from Japan. So if they do reginal coding in the future I may have a problem. At one point the player wasn't working well and noticed it keep going to the hard drive, turnes out I needed to re-format the drive it was full.