there is also a freeware program available that will author true DVD-Audio discs:
DVD Audio Tools
http://dvd-audio.sourceforge.net/
Additionally, you can download the freeware "DVD-Audiofile" which is just a windows GUI for the DVD Audio tools program, and allows you to author a DVD-Audio disc without having to use the DOS command line :) Download that here:
http://24bit.turtleside.com/
these programs will create a disc image, so the result is an ISO file on your hard drive. from there, it's as simple as burning the image to disc. I personally use ImgBurn (great freeware program), but almost any DVD burning software should allow you to burn a disc image (.ISO) to a DVD.
