Replacing PSP game audio files?

Crazy Taxi is one of my all time favorite Dreamcast games; So I was thrilled that the game was also coming to the PlayStation Portable. But unfortuatly the messed up the game with stupid sound effects and a horrible soundtrack. So I was wondering:

Is it possible to change all the SFX and audiofiles in a PSP game? And if so; how difficult is it going to be?

my goal:
change all the audio from CT:Fare Wars with all the sounds from the Dreamcast version!

 

I m with you, Offspring and Rancid ftw!

 

Are you reffering to Crazy Taxi 2? Since Rancid is not in Crazy Taxi 1. Only the Offspring & Bad Religion!

 

sorry, my bad =)

 

hehe np; btw I have the Crazy Taxi 'OST' ready for use in the game. (but thats just dead easy; the game has Mp3 support)... But I really want to replace the horrible sounds from the PSP version

 

Yea you can replace the music but you'll have to convert it to atrac3plus first, you can use the Codemasters EAC utility here