How do you fix the ring scratch on xbox 360 games?

So I accidently kicked over my xbox 360, and theres a perfect circle scratch on the disc, and I was wondering if there were anyways to fix it. I heard an idea about toothpaste, and a highlighter. Or I also heard about takeing it in to EB games or blockbuster to have them fix it. Anyone have this problem and fixed it?
How to get rid of a ring on xbox games?

I accidently tipped over my xbox while playing and now there is a ring around the game so now i cant play a certain level on the game. I need some help to get rid of it.