FWIW: I managed to build Lplex (
http://audioplex.sourceforge.net/) under Linux.
Lplex is a simple drag-and-drop open-source win32 console utility intended
to provide a free, quick, and hopefully painless way to create a playable full-resolution "audio-only" dvd-video disc from wave or flac audio filesets, with md5 verification and archival content and/or xtract unencrypted lpcm audio streams from dvd-video to wave or flac in an md5-verified process.
I am trying to make the software work (I am new to it) and will post about my experiences.