Hi. Whenever I start my PS2 with GTA San Andreas , it gets stuck. Previously -some months ago- it worked fine. Now, after 2-10 min. it freezes, and a text appears "Error reading disc GTA San Andreas", or something like that, and the music just keeps playing. I've tried everything, pressing on every button, putting the disc out, and back in. Nothing helps. It takes longer to load the game, then I'm able to play it, which sucks. There could be some scratches on my disc. I've heard of putting toothpaste on your disc (???) so that the scratches equal the surface, but I'm not sure about that. Any idea what I can do?