winLAME - winLAME is an encoder for several audio formats, including mp3 (MPEG Layer 3), Ogg Vorbis and more.
Asunder - Asunder is a graphical Audio CD ripper and encoder for Linux. You can use it to save tracks from an Audio CD as any of WAV, MP3, OGG, FLAC, Opus, WavPack, Musepack, AAC, and Monkey's Audio files. Asunder is translatable!
Sound Juicer - Sound Juicer is a clean, mean, and lean CD ripper for GNOME 2.
fre:ac - fre:ac is a audio converter and CD extractor designed for Microsoft Windows, Mac OS and Linux, distributed under the GNU General Public License.
morituri - morituri is a CD ripper aiming for accuracy over speed.
XRECODE - XRECODE can convert multiple audio files in parallel by taking full advantage of multi-core CPU.