Information:
GCD is a full-featured CD player with a GTK+ interface. It has a nice, clean look with both an informative display mode that includes track information, and a condensed mode with a small screen footprint.
CDDB is supported for lookup and submission of track information over the 'Net, with HTTP proxy support for people behind firewalls.
GCD is based on the CD player functions of Grip, and it's compatible with Grip's configuration information and local disc information storage format.