replacing in game music for a PS2 game.

I have a copy of Crazy Taxi on the Ps2, my PS2 slim is modded (Free McBoot), however I really want the original Dreamcast soundtrack on it, I ripped the DVD to my hard drive but I am not sure how or if I would be able to replace the music in it, is there any way that it's possible? I've searched around and found guides for a few different games (Some WWE game, and another one I forget the name of) but the general consensus I've found is that it's pretty different for each game, so does anyone have any experience in this or what? Because Crazy Taxi doesn't feel the same without the original soundtrack.

You'd have to figure out what format the audio tracks are in for the PS2 version and the Dreamcast. Are they like CD tracks or mp3, wav, etc. You'd have to rip and convert the Dreamcast audio to match what the PS2 version is, and if there's a TOC or INI file that lists the checksum or file size of the audio, you'd have to edit it to match

pretty much what BahamutLord said, but if they are like guitar hero or anything, converting the file to .org or .mp3 will probably be your best bet as those formats are the most popular for audio and were probably used for the creation of your game. Just make sure that whatever music files you replace, to name your music title the exact same