A high quality MP3 encoder
LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to improve the psycho acoustics, quality and speed of MP3 encoding. Note: we provide source code only!
FLAC is a free lossless compressed audio format which supports streaming and archival. The FLAC project maintains the format and provides a reference encoder/decoder and input plugins for several popular audio players.
XMMS-Musepack is an audio output plugin for the well known xmms on Linux. Andree Buschmann's en-/decoder is a great improvement of lossy audio compression compared to MPEG-III. Give it a try! Frank Klemm has added many speed optimizations and continous