Do not reply fixed it.

[Gerarghini]

I have a problem. I'm trying to use NFSPU's soundtrack for this game but the thing is that when I go to choose it, all tracks are greyed out and I can't use them. Except for the intro track for some odd reason. I don't understand what the problem is when they are all in standard mp3 format. Any help would be appreciated.

 

[Gerarghini]

Figured it out, turns out the mp3's sampling rate must be above 32 and all my mp3s were 32. Converted all of them to 44.1 and they work fine now.