A few things come to mind in order of ease:
- Clear out your disk cache - I use Onyx for this maintenance.
- Clean the lens on your player!
- Or... despite your following recommendations, it's possible your bit rate is way too high. I think the max is what? 8 Mb/s?
What is the CreativePro MP plugin? I go straight to Toast.
I encode discs (yes, some of us still need them!) from ProRes HD export to Toast widescreen DVD at around 5.5 Mb/s. Looks great, performs fine.
HTH
Best, as always.
Loren