I'm pretty sure that's its Scratched disk problem I've had it happened once before on and copy of the game I found in a game stop dumpster.
There was some scratches on it, and a better way to fix the scratches If you have some Car Wax, the type I use and had best results with is Carnauba Wax in a liquid form.

Now what you want to do is apply a few drops of it to the Disk and use a microfiber cloth and rub in a circular motion all around the disk and make sure to focus on the areas that look rough.
And then let it dry few a good 30 seconds and then buff it off with a clean microfiber clothe and that should do something.