It's just with the movies. When they start playing ingame ( you know, the team 17 logo, worm vs granny etc.) instead of the proper audio, I get a sound similar to what you get when a tape it pulled apart while playing, except harsher. Is the any specific audio software I need? And help would be much appreciated, thanks. :)

1) Give your system specs
2) Is your sound card DX compatible?
3) Try running the movies in WMP (IIRC they run fine in WMP without any errors). They are in ...\Worms 3D\data\FMV


Tell me the answers or results of these and I may be able to help

1) Give your system specs
2) Is your sound card DX compatible?
3) Try running the movies in WMP (IIRC they run fine in WMP without any errors). They are in ...\Worms 3D\data\FMV


Tell me the answers or results of these and I may be able to help

Well, they play fine in WMP, just not in game, and i think my sound card is DX compatible, as other games that require it work fine. I'll give my specs in a minute.

I found that ingame, they also become jerky after a few seconds as well as the messed up sound.

Try updating your sound card drivers.