The Xiph.Org Foundation is a 501(c)(3) non-profit organization dedicated to producing freemultimedia formats and tools. Their primary focus is on the Ogg family of formats, the most successful of which has been Vorbis, an open and patent-free audio format and codec designed to compete with the patented MP3 and AAC. Current development work is focusing on Theora, an open and patent-free video format and codec designed to compete with the patented MPEG-4, RealVideo, and Windows Media Video.
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