Sorry, I should have been more clear. Using Verbatim +R DL, setting booktype to DVD-ROM with the L&D 1.Y6 firmware on my drive.
ALL discs I burn will play in the Sony player, however, there is often stutter and particularly, hangup when making the layer transition.
CDspeed scans of my burns confirm that they are consistently good quality (I use TYG02 media for single layer and Verbatim 2.4x-8x media for DL).
So perhaps a better question might have been: Can anyone recommend DVD players which are known to be good readers/scanners? Compatibility was the wrong word.