This info is helpful - thanks and FWIW,
I have succefully used Toast 9.02 (with BD plugin) to write a BDMV title created using
Encore CS3 (Mac) to a DVD media disc to make a compatible (small) BD on DVD (BD5 or BD9)
This is a perfect, and inexpensive, way to create BD5/9 discs that can play on BD players;
(so far, I only have the SONY BDP-S350 to test it on, and it works file).
HTH - Bruce Nazarian, "the digital guy"