[mysteryfunk]

well, it turns out to be the opposite of what has been suggested.
tried 2 more burners (NEC & Pioneer) and was still having the same problem, some discs work in car, some don'tat all or have trouble tracking.
The only solution is it must be my car stereo and the read mechanism is slightly off or something. i took the cds that were not working up to Best Buy and tried them on their various demos, and they all work fine in all of them, so I guess it's time for a new car CD player tomorrow morning.
Thanks for the suggestions!