Help needed reading raw CD data

[Thomas A. Fine]

I've been trying to read raw (music) data directly from the CDrom player.
I've tried the ioctls CDROMREADMODE[12].  I've also tried opening and
reading /dev/rsr0, and also just using cat (for completeness).  In all
cases, I get errno 5 (I/O error).  This happens only when I try to read
music tracks.  If a read a track which is a High Sierra file system, it
reads it.  But this isn't what I want.

So has anyone done anything like this?