wavpack: wavpack - a lossless, lossy & hybrid audio compression tool.
wavpack:  
wavpack: WavPack is a completely open audio compression format providing
wavpack: lossless, high-quality lossy, and a unique hybrid compression
wavpack: mode. Although the technology is loosely based on previous
wavpack: versions of WavPack, the new version 4 format has been designed
wavpack: from the ground up to offer unparalleled performance and
wavpack: functionality.
wavpack: 
wavpack: 
wavpack: http://www.wavpack.com