Toshiba 9200...wont play home burnt DVD-As at all?

Hey all..
wondering if i'm the only one having this trouble?

i'm using discwelder chrome to author stereo 24/96 DVD-A discs.
they all come up as "disc error" when I try to play them.

I can burn DVDv discs with 24/96 LPCM tracks and those play just fine, so its not that it wont read homespun discs.
maybe i'm using the software wrong...?
I used to have the sd9200. It will not playback copy DVDs period. Unless you know how to hack it.