First off, the best quality test is if the disc plays well. The 2nd caviot is that most consider the scans as eye candy, they are pretty to look at.
I have found some guarded correlation between my scans and what plays well for me.
In general, if I get a 90% Quality Score or better, I'm fairly certain that that disc will play well in everything I have, with 1 exception (I have a BR player that is picky). I haven't had alot of problems with scores in the 80's. Below that I generally experience pixelation, freezing and/or skipping.
For an MBI DL disc I'd rate your scan as a very good one. If it was mine I'd expect it to play perfectly. Was this your first burn of this media in that drive? It's been my experience that burns get better after a half dozen or so.
How do you like that burner? I've been thinking about getting one of the 7200 series for myself.
BTW, in the title bar of CD-DVD Speed, the right hand green icon is for saving the scan as a png image, easier for uploading than a screen capture.
I say 226 PI errors are not good; almost twice the verbs, but then again, it might be the burner. Only 104 Verb/Pioneer combo is not shabby.
Optiarcs are no good. Any company/companies that actually bothers to put a TM on a burner- they don't' have the best interest in a quality product, rather a "quality" brand name.
And as you can see Samsung/verb combo falls behind the Pioneer/verb.