unreal... used to work, now doesn't.. help!

[Lowlivin2002]

forever ago I downloaded Unreal Tournament, and have been playng the burned copy for like 5 months. I stopped playing like a month ago, and now when try to play it again, it doesn't load, the 4 options screen just comes up. tried it several time, and it just won't paly. It always played before, never ever having a problem. I took the iso imge fro ti with the latest version of discjuggler, and then tried to reburn it ( yhnking the scratches did something.) and now, when I play the other copy, it only shows up as an audio selection, with 5 tracks, but they come out as hisses nd scratchy noises. Is my game corrupt? how could that happen if I played it for the longest time without incedent? if anyone can help me, it would be really appreciated ( that's my favorite game for DC.)