WebM Files

WebM

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WebM

Filename extension	.webm
Internet media type	video/webm, audio/webm
Developed by	Initial developments by On2, Xiph, and Matroska, later developments by Google
Initial release	19 May 2010; 2 years ago[1]
Type of format	Media container
Container for	VP8 (video) Vorbis (audio)
Extended from	Matroska
Open format?	Yes[2]
Website	www.webmproject.org

WebM is an audio-video format designed to provide royalty-free, open video compression for use with HTML5 video. The project's development is sponsored by Google Inc.
A WebM file consists of VP8 video and Vorbis audio streams, in a container based on a profile of Matroska.^[2][3][4] The project releases WebM related software under a BSD license and all users are granted a worldwide, non-exclusive, no-charge, royalty-free patent license. Despite this, some in the industry have called upon Google to provide indemnification against patent suits.