[SteveR]

The first version (80gig I think it was) could play all PS1, PS2, and PS3 games as it had the physical hardware inside to do so. The other versions (60 gig, 120gig) don't have that. Sony decided to switch over to what Microsoft does with the 360 and do it as a software upgrade and at Sony's discretion as to what games can and can't be played. So if you can find an older 80gig version (I think that's the one it was) then that's what you want to get.