Can a PS2 game be played on a PS3

[StrictlyBoogying]

I'm clearly an idiot and suggested my brother buy DH a PS2 game when he's got a PS3. Duh! It was bought abroad so can't be returned. Is it totally useless?

No, should be fine. Other way round is a no.

Only problem is that, as far as I know, playstation software is regionalised (like DVDs) so depending on where overseas it was bought it may not be compatible. We have a PS2 bought where we were living abroad which will not play UK-bought software. Don't know about PS3, but if they thought it was worth regionalising before, it seems unlikely to have changed...

Ah. So like DVDs games bought in the US may not play here. Well, only nine days until we find out. Thank you!