Halo 3 Maps won't load?

[charlie h]

I have a problem, when I try playing a custom game, the map loads 29% and stops. I had previously brought my HDD over to my cousin's house to play some games, didn't drop it, brought it back, and didn't play my 360 till now. Anyone know whats wrong?
Theres a line on the disc like this:
http://i34.tinypic.com/rvgh9j.png
I even tried wiping it. No success, any idea on getting a replacement without spending $60?

 

[niger213]

Your disc is probably scratched. It could even be a tiny scratch. Is it al the maps or just some?

 

[Stix .]

well my friends disk is scratched and it stops him from playing on serten maps so either your disk is scratched or you need to download the maps for free are they the heroic and legendary or are they the basic ones you get with the game? It Matters