CD Buring issue for Car CD Player

Some help needed if possible. When I burn audio CDs in WMP Ver.11 (Vista) they no longer will play in my wife's car CD player. (2002 Toyota). They will Play in all other vehicles though. Her car will Still Play everything else that I have made using XP. I have tried All types of media and I make sure that the Burn setting in WMP is set to CDA. I have been to Best Buy and my new stuff plays on all of their display players. I have found a file on this site called 'Fix WMP Utility 1.0'. Hoping that may help. Any ideas would be of great help. I cannot figure this one out, but hope that someone can solve this for me.
Thanks,,,,, danny