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Format

Windows Media Metafile

Summary

Name
Windows Media Metafile
Identifiers
PUID: fmt/584
Format type
Text (Mark-up)
Description
A media metafile is a file that contains information about other files. A metafile can be used to list a group of media content files that are to be played in order. The .wax metafile references Windows Media files with .asf, .wma, or .wax file name extensions. The .wvx metafile references Windows Media files with .wma, .wmv, .wvx, or .wax file name extensions. The asx metafile references Windows Media files with .wma, .wax, .wmv, .wvx, .asf, or .asx file name extensions.
File extensions
wmx, wax, wvx, asx
Submitted by
Digital Preservation Department / The National Archives
Developed by
Microsoft Corporation
Supported by
Microsoft Corporation

Internal signatures

Windows Media Metafile

Description
<(asx|ASX) (version|VERSION){0-1}={0-3}3{0-64}>

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
1
Byte Sequence
3C(617378|415358)20(76657273696F6E|56455253494F4E){0-1}3D{0-3}33{0-64}3E
Endianness
None

Changelog

  • V70

    Release date
    28 August 2013
    • Added format

      Windows Media Metafile: Outline Entry Added through PRONOM Research.

    • Added signature

      Windows Media Metafile: Signature developed through PRONOM Research.