No. I use MP3 as well. I would say make sure they're formatted correctly and whatnot. Have you gone into your assets file and tested to see if they work in there?
Hmm. I suppose the only thing I could think of is making sure a firewall isn't blocking the game's access to files. Is the radio the only thing not working? Have you tried pictures and stuff?
good news, seems the yt to mp3 converter I was using just didn't comply with VOTV for some reason, used a diffrent converter and they work as usual. Thanks for the help!