I keep getting a disk read error on halo 3 after i finsh matchmaking?

[systemglitch11]

I have cleared my cache xx rb lb xx i have dleted my game data and my profile and recovered it and i have been on tech support with people who barley speak "ENGRISH" and who just type crap in the computer instead of helping

 

[R Y Khan]

http://uk.youtube.com/watch?v=L9P16JrEtjk - This may help your DVD's to read alot better.

 

[King of Fire]

It could be that your disk is scratched, either by the system (the 360 does that sometimes), or its just you. I recommend finding a way to remove disc scratches, or visiting a video store, and ask them to help you buff out the scratches.
You might just need a new disk....or if you're really bogues, u can rent it, then swap the disks =P