Grip is a cd-player and cd-ripper for the Gnome desktop. It has the ripping capabilities of cdparanoia builtin, but can also use external rippers (such as cdda2wav). It also provides an automated frontend for MP3 (and other audio format) encoders, letting you take a disc and transform it easily straight into MP3s. Read more hot
Apolos is a small cd player that features support for the CDDB-protocol, Play List and Play/Pause/Stop/Eject.
beboCD is a cdplayer based on GTK2 and libcdaudio libraries.
GryPhon is a Linux GTK CD-Player focusing on configurability, features and looks. It is a full-featured CD-Player, with CDDB-loading/editing/saving and is written PURELY in Python. GryPhon also features a full-featured CD audio library called CDLow.
XfreeCD is an audio-cd player for Linux (and, maybe, other *NIX) operating systems. XfreeCD is based on a GTK2 toolkit, which makes it a fast, beautiful and fully unicode-compatible application. Also, it supports CDDB.