Nav CD player doesn't like reading my mp3 CDs
 

I have a 05 with Nav and it seems to only want to play my MP3 cd-r's when it feels like it. I pop in a cd one morning and everything works fine and then when I go to start my car in the evening after work, the cd isn't recognized by the Nav player. It says Insert Valid Disc. Does anyone else Nav do the same thing?

:bs