I burned a DVD-R last night with 4gigs of MP3 on it and my LTZ nav unit can't read the disk at all. I know it played a movie DVD disk I burned, so the unit works. Is there a specific directory structure that I need to create or it simply will not play mp3s off the DVD disk?

 

I think you need to just save it in a different file format for audio or video.

 

Negative, as far as I am aware it will only play mp3s from a CDR. not DVD-R... sorry. it's a sat nav designed by an 80 year old for an 90 year old... it's the one thing I HATE about my Tahoe...