I got xmcd to work with the SDIOCSFORMAT/SDIOCSCSICOMMAND mechanism. 
This means that I can now play audio CDs with NetBSD/pmax.  (This is
really nice because IMHO the RRD42 has great audio quality. :-)

For more info take a look in:
http://www.undergrad.math.uwaterloo.ca/~bgjenero/xmcd.pmax/

-- 
|  Boris Gjenero <bgjenero@undergrad.math.uwaterloo.ca>              |
|  Home page:  http://www.undergrad.math.uwaterloo.ca/~bgjenero/     |
|  "Luke, you're going to find that many of the truths we cling to   |
|  depend greatly on our own point of view." - Obi-Wan Kenobi, ROTJ  |