I just bought Halo 3 last night and the disk is "unreadable" and there is a

[basketball_4_life]

scratched ring... what do i do? Any way to get my money back or new game? Package is opened so it can't be taken back

 

[Tiger]

if you just bought it yesterday, you can return and get a new copy.

 

[CatBreeder]

scratched ring. what do i do? Any way to get my money back or new game? Package is opened so it can't be taken back

If you have the receipt then yes, you can take it back.