OK. Here ya go.
1. press the button on the CD drive.
2. Pick up the Disc in the tray.
3. Take your car keys in your hand.
4. Place the Car keys firmly on the silver shiny side of the Disc.
5. While still pressing down firmly, draw the keys across the full length of the CD.
6. Repeat steps 4 & 5
7. Once the Disc surface has been entirely scratched, replace the Disc.
8. Close the CD drive.
9. Begin the game.
If that fails....
TAKE THE CD OUT.