i backup god of war 2 on a dvd9 (cause my kids love scraching the disk and stuff, and it will not play or boot even. i just get a weird sound from my ps2. my ps2 is modded i dont remember with what chip it was several years ago. i am using dvd+r dl by verdatim. this is the first time i have used dual layer. please help before my kids ruin the game.