my star ocean 4 first disk has residue on it (bought it used, said it was resurfaced). when i download it, it doesnt past 14-18% and when i try to play it, it gives me an disk not read error when i am in the space ship (on lemuris). now i tried cleaning with toothpaste and that just made it worse and i am wondering if its possible to download the game from the computer, put it on the hard drive and put the disk in if that would work.