shntool - a multi-purpose WAVE data processing and reporting utility, with support for various lossless audio formats
shorten - a fast, low complexity waveform coder (audio compressor), with support for seek tables
xmms-shn - an input plugin to play .shn files in XMMS, with support for real-time seeking
mkwcon - a console utility to encode and decode MKW files
Jason Jordan <shnutils at freeshell dot org>