How are you burning them carlosofmanyposts? In Media Player? As MP3 file (Data CD) or as a CD?
I've noticed that mine, non i-drive, basic HU (which, incidentally has never missed a track I've burnt) picks up the xml file that Media player puts on disc. If the tracks are missing from that, maybe that's why they don't play, but miswah's (what does that actually mean?) car might not look at the file and just list the mp3s straight off the disc?