Ok, so whenever I Play CoD:World at War my 360 makes all kinds of noises like it is having a hard time reading the disk or something. I have inspected my disk, and there are no scratches on it so its no being scratched by the 360.

Funny thing is though, ONLY CoD does it.

Halo 3, Gears 2, and my other games run completely silent.

Any Suggestions?

(Btw the 360 is laying flat, not standing tall if that means anything.