Lame123 is a simple GUI for L.A.M.E
Can play MPEG4 files on PC with this codec.
Realtek High Definition audio codec driver for most sound cards.
Enhancer 0.17 audio plugin for Winamp, best DSP plugin.
It featuring five 24-bit stereo DACs and three 20-bit stereo ADCs.
It checks an AC3-file for bad frames