I've looked everywhere for a DVD audio creator for the Mac, and have come up pretty empty. There are a few open source applications out there that create DVD-A files, but since most DVD players do not support the DVD-A standard I was looking to create DVD-V files that I could play back on a standard DVD player that can output 24 bit 96 KHz data through the coaxial digital output.
So I had to resort to Windows and this program:http://www.audio-dvd-creator.com/
Did the trick for me. It basically outputs a VIDEO_TS folder that I can burn to DVD using any DVD burning software.
The problem is that it is only Windows based. I I had to resort to running it in Parallels on my Mac, but this arrangement at least gets the job done properly.