Sony DVD+R media + Sony DRU-530A = failure. what kinda deal is this?

I have a Sony DRU-530A and it is not successful at burning Sony brand 8x DVD+R at 8x. DVDInfoPro IDs this disc as SONY.

Sometimes, I’ll get focus or tracking error. Sometimes it burns, but it fails verification and quality check.

I used TY rebadge Fujifilm from Best Buy and these don’t fail verification or fail quality check, however drive still slows down midway through 4x-?x CAV reading .

Is there something wrong with my drive causing it to not even work well with their own brand of media while working ok with more tolerant TYs or was it the media?