Format war
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A format war describes competition between competing media formats, usually very costly to the format-owning parties involved.
Examples include the following:
- Videotape formats, VHS versus Betamax
- Recordable DVD formats, DVD+R versus DVD-R
- High-definition DVD formats, Blu-ray versus Advanced Optical Disc
- Digital video compression formats, Windows Media Video versus RealVideo versus DivX
- Digital audio compression formats, MP3 versus Ogg Vorbis versus Advanced Audio Coding versus Windows Media Audio