Changing the Soundtracks on games? NFS: Underground

[Tango87]

I read once in this forum about changing the soundtrack in a game by using PlashFXP and taking out the games tracks and then adding your tracks and burning the new game to a disc. But when I looked in the NFS: Underground folders there were no tracks to be found... I know they are there because there are like 15 of tehm in the game but they suck so I want to enter my own. Someone please helkp me out with this if they have an answer.

[Quall999]

You can only change the soundtrack if you can incode the same format as the original audio files. Alot of xbox games use wma's and wav's. So for those games, it is easy.