How do I play music CDs on CD-ROM drives?
Sources for xcd are included in /usr/examples/motif/xcd.
Another version of xcd is on the Freeware CD-ROM in both source and binary
form, but that version may have been superseded by the one distributed with
the operating system. Neither cdp nor xcd is supported by Digital.
Two other programs are Workman and xmcd, both of which can be found on
ftp.x.org. Of all these programs, xmcd seems to be the widest used and to
have the largest database of audio CD data.