In the past I also had problems playing cds that I burned from my computer in my car cd players. Then I read in one of the PC magazines that the trick to getting these home made burned cds to play in a car player is to BURN THEM AT A SLOW speed. This allows a better quality burn that the car cd players can read. Once I burned my cds at the slowest speeds they play just fine now. I also think the trick to playing mp3 music in these car cd players is to burn them as audio cds and not data cds as was discussed before by radmanly.