Modern Warfare 2
Disc was in console when it fell over. This resulted in a circular scratch about 1cm in from outer edge. Disc would not play, took it to Blockbuster and they put it on scratch machine, looks much better yet still wont work, brings up the game but lasts for 10 seconds. Hard to show it on camera (see pics)
If you think you can get it to work then its a steal at a tenner. I've bought the game again for £25.