I'm having problems with AC3 5.1 audio in DVDA 5.
I render both the video and audion using Vegas 9 from the same MPEG2 file. Vegas correctly identifies the 6-channel stream and I render it using the Dolby Pro plug-in. When I open it with Nero Wave editor it shows all 6 channels as it should.
When I preview the audio file in DVDA using the explorer, it says the audio has been downmixed to stereo, yet the project properties say 5.1.
When I add the video file, the video and audio are drastically out of sync. Yet I rendered them both in Vegas.
I'm not sure if the sync problem is a result of the downmixing, but until I correct that I can't address the sync problem.