I've seen that this is possible but I can figure out how to make it happen. I have exported a 1920x1080 ProRes HQ 23.98 5.1 video file from Adobe Premiere. It's the proper 5.1 not 6 mono channels. I've tried all the versions of Movie studio and none will bring in the audio. I basically just need to make a Blu-ray with a simple black menu with white text. Very, very simple.
Thanks!
FutureX