The Ogg file format has been designed by Xiphophorous as a free and open alternative to multimedia formats such as QuickTime and Windows Media. As of November 2001, implementations support only the Vorbis lossy audio codec, but developers continue to work on other codecs.
- Vorbis: perceptual lossy audio compression that has already surpassed MP3 in quality bit-for-bit
- Tarkin: lossy video compression
- MNG: animation based on PNG and JPEG. Ogg MNG can potentially replace the various incompatible motion JPEG systems in existence.
- XML: text, good for subtitles and captions
- Xiphophorus's Ogg page (http://www.xiph.org/ogg/)