Hi, I've just made the first alpha release of my DVD-Audio authoring application. It's available at: http://dvd-audio.sourceforge.net The program is currently limited to 2-channel 16-bit audio, but all DVD-Audio samplerates are supported (44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz and 192KHz). A simple "how-to" is available here, as well as documentation about DVD-Audio is also available on the above site. Any feedback or questions welcome - there is a dvd-audio-devel mailing list linked from the above site, or you can email me privately. Dave.
