Ive got the same problem guys.I have a PS3 that plats PS2 games CECH C02.I think it plays both versions because ive got a region 1 GT5 game and the GT5 icon will only appear under the "GAME" menu of the PS3 if i load another game(WRC),then once that game is loaded i press the PS button and the GT5 icon appears and i can start the game.I do this every time i start up.I also purchased a DLC code(1 car but i got 5) for japan region and i guess its PAL because the stealth icon appears under "GAME",it installs but the acctual cars never appear in me garage.im still summing up what to do coz ive used the code,and the expirery mentioned above.Im also wondering if i buy the
PAL version of the game will my saved data work?.Im looking towards a used game disc.Ive sent an email to sony asking if i can swap/or get another code.1 big headache but worth it to me.good luck with your search mate.