custom sound tracks in games

[heartripple]

hey i know that so many gamers using their custom sound tracks in games like gta or many others so i wanted to know how can i use custom sound tracks in nfs carbon or cricket 2007 .

[ionicsachin]

in gta its an in-game feature to have custom tracks as radio stations.....
in other games the sound files are usually bundled into one big file and sometimes they cant be extracted also....moreover the in-game music is adjusted with timing and condition in game.....u wont like 'dil chahta hai' in place of fight music in games like serious sam or while driving a lambo at into-the-seat high speed in nfs