How do you know it's TYG02 and not YUDEN000T02?
CoachStein, although you got better result burning at 8x, I would suggest to keep trying at 16x (after all this is a 16x drive). I would recommend the following:
- Install Plextools Professional from the CD (it's actually a DVD) that came with 716. Upgrade from www.plextools.com to 2.19a.
- Check that in Drive Settings - Advanced, the following items are enabled: Buffer Underrun Proof, PowerRec, DMA, SpeedRead CD/DVD, AutoStrategy, Change Booktype for DVD+R and DVD+R DL.