I doesn't work, guess cause its dual layer or something. Please only post if you know a way to get the game copied on to the hdd... fully explained. Thanks.
Try Using WinHIIP on PC , but instead of buring straght from Dual Layer , rip it 2 ur PC's HD and then Make it an Img.And in winHIIP clik "add Images" and select the GT4 IMG. think that will probly work