Joe,
Thanks for your response. I do not have any overrides in the project.
I have successfully built a Blu-ray BDMV folder in Encore. I then burned a BD-R of the BDMV folder using Toast 10 Titanium and a LaCie D2 Blu-ray burner. The disk played fine in two different Blu-ray payers, no problems there. Of course, there were no chapters because the glitchy Encore preview left me too weary to encode chapter markers into the project.
-T