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Format

WebM

Summary

Name
WebM
Identifiers
  • PUID: fmt/573
  • MIME: video/webm
Format type
Video
Family
EBML
Description
WebM is a media file format, developed by Google based on the Extensible Binary Meta Language.
File extensions
webm
Submitted by
Digital Preservation Department / The National Archives
Developed by
Google
Supported by
Google

Internal signatures

WebM

Description
1A45DFA3(EBML Header){0-32}4282847765626D4287(doctype = webm)
Provenance
http://matroska.org/technical/specs/index.html http://www.webmproject.org/code/specs/container/

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
1A45DFA3{0-32}4282847765626D4287
Endianness
None

Changelog

  • V86

    Release date
    27 July 2016
    • Updated

      Webm: Added family relationship and edited signature description.

  • V70

    Release date
    28 August 2013
    • Added format

      WebM: Outline Entry Added through PRONOM Research.

    • Added signature

      WebM: Signature developed through PRONOM Research.