Since there's not a cdda2wav component, I'm filing this under cdrecord.
===============

I think the command

$ cdda2wav -D <device>

should dump just the first track of a music CD, and so it does.
It outputs something different, though:
...
...
100%  track  1 successfully recorded
100%  track  2 successfully recorded
#

It does the right thing (dumps 1 track, and I can see just 1 inf and 1 wav 
file), but says it dumped 2 tracks.