Vorbis

About

Ogg Vorbis is a patent-clear, fully open general purpose audio encoding format standard that rivals or surpasses the 'upcoming' generation of proprietary coders (AAC and TwinVQ, also known as VQF).

libvorbis, a BSD-licensed source implementation of Vorbis as a library is available; See the Ogg Vorbis page for documentation, downloads and distribution terms.

Further, many players support Ogg Vorbis; see vorbis.com for a list of all the players we know about.