I used to have no problem burning mp3 discs on iTunes and playing them in my car. Now when I burn a disc, it will play in the computer, will play on my blue ray, but won't play in either of my cars. The display just says "disc read" but never gets beyond that. I have read about this problem in several other forums and have tried all the solutions I've seen there, but none have worked. I've tried upgrading from Verbatim discs to Memorex, and I have tried slowing the burn speed from Maximum to 16x and 8x. Nothing works. I have made certain that MP3 disc is selected rather than data disc. Any other ideas?