We can use Dolby TrueHD it is no problem, but we\I prefer DTS HD-MA 5.1 and this is what we will use because I find this to be way more compatible then Dolby TrueHD, so if this becomes available to us then I would prefer lossless wav files like before, I can encode myself like all the other versions, TrueHD is to difficult to work with and depending on what you use for your BD authoring any HD audio could be a problem and not author right.

So if it is OK and it is done in time for us then I would prefer 6 mono wav files.