If you want, I can send you mine!
... oh, right. After my kick.
That really sucks, man. Does it, like, not load up into your PlayStation at all? Or does it hang on one scene? My suggestion is that you take some Scotch tape, right? Tape a square around the center hole. Trust me, that's saved us many an hour with other PlayStation games on the PS2. All our Final Fantasy games and I do believe our copy of Chrono Cross has it done as well. Another thing you may try and do is put your PlayStation (if it's a PS2) so that it's vertical. That made some of our games work better. Also, clean both the disc and the PlayStation.
And whatever you do, DO NOT TAKE A SCREWDRIVER TO YOUR SYSTEM. My brother did that once and we had to buy a new PlayStation.
Let me know if any of that helps, 'kay?