Right before burning, in details, nero says dolby digital ac-3.
http://www.videohelp.com/dvdplayers
look up your player compatability.
I read the manual and it says that my home theater [Panasonic SC-HT700] supports DVD-audio format...
I tried simple burning an MP3 disk onto a DVD-R using Nero but it won't play in the home theater... MP3 disks on 700MB disks read just fine.
What exactly is DVD-audio and how do you create such disks!? Thanks

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