So some success. I was able to get an RiData DVD+R to burn properly using the 6X write speed so maybe it was just that?
I don't have any explanation as that was the 2nd DVD I burned at that speed but wish me luck! I have many more to make.
One interesting note: Toast provides available write speeds based on the blank disc. So my single layer RiDATA DVD+R have Best, 6X, 8X, 12X, and 16X. The Memorex dual layer DVD+R's offer Best or 4X. I'm sticking with 6X on the RiDATA discs.
Oh, and yes, my blu ray player plays DVD's and Blu Ray discs without fail...just tried a bunch.
And I nearly forgot to thank you for being so responsive and helpful!!