WavPack - WavPack is a completely open audio compression format providing lossless, high-quality lossy, and a...
LameXP - LameXP is an Audio Encoder Front-End, a graphical user-interface for a number of audio encoders.
Multi frontend - Multi frontend is a Windows GUI (grafical user interface) for the following console audio...
FLAC - A free, open source codec for lossless audio compression and decompression
FLAC Frontend - [No longer maintained, but downloadable]
wxLame - wxLame is a free front-end for the LAME MP3 encoder.