modded music question

Hi There,

I modded my MTW2 music using Trajan's excellent tutorial. Everything works great, except for one particular mp3 track. I want it in the game to start battles with and edited the 'music' text file accordingly. But this track won't play ingame. It will play outgame, if I click on its icon in the MTW 'music' folder, but not actually in the game. Any ideas?

Thanks in advance for help.