jneul said: it depends if the game you buy has been looked after or not, for example if it has smudges and scratches it will not work as well as a new version. |
That's physical damage though, in which case you could just take it back and swap it if it didn't work properly. Scratches on the disc do not affect the graphics, sound and gameplay of the game. Scratches on a car could mean it requires a new pain job to avoid rust.