Likely the dealer will shrug and say that stereo is not guaranteed to work with CDR's. There are so many variables involved that I wouldn't blame them for taking that stance, and I burn a lot of CDR's myself.
I only use Mitsui, and haven't had any problems with any of my CDR's in my IS300.
I only use Mitsui, and haven't had any problems with any of my CDR's in my IS300.