What do u clean a ps2 disk with?
I have one of those things that you get from the 99 store. You put your cd on a plate and it comes with a brush and you wipe the cd after you spray on the solution wipe it straight across, not around, this way you pick up more of the scratches with the brush, afterward let it dry then place it in the rack and see if it works, or you can get CD solution which they also sell in most stores for a reasonable price, but work with the solution and the plate, it usually keeps my PS2 cartridges clean with no headaches.