.WEBM File Extension

WebM Video/Audio Multimedia Container File

Video File
Contains both video and audio data, stored inside a single (container) file. These .WEBM files were originally intended for playback within HTML 5 compatible browsers (such as Internet Explorer (IE), FireFox, Chrome etc).

    Container format

    The .WEBM container file format, that stores the video and audio data is based on Matroska (also know as Matroska Multimedia Container). This is an open-source format that can contain any number of multimedia file formats.

    Video data

    Video data stored within .WEBM files uses another open-source compression format called VP8.

    Audio data

    .WEBM audio data is compressed using the Vorbis compression format.

The .WEBM project was initially announced by the project's sponsor, Google, in 2010. In 2011, Google announced that all videos on YouTube were being converted to the .WEBM format.

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