Details: File format summary

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Properties

Summary
Name	Windows Media Audio
Version
Other names	WMA
Identifiers	MIME: audio/x-ms-wma Apple Uniform Type Identifier: com.microsoft.windows-media-wma PUID: fmt/132
Family
Classification	Audio
Disclosure	Full
Description	Windows Media Audio Format is a subtype of the Advanced Systems Format, developed by Microsoft for storing audio data streams. It comprises a Header Object, which describes the properties of the data streams, a Data Object, which contains the actual data streams stored in Data Packets and, optionally, one or more Index Objects. Audio data is stored using the Windows Media Audio codec, and the format supports streaming across networks.
Orientation	Binary
Byte order	Little-endian (Intel)
Related file formats	Has lower priority than Windows Media Video Has lower priority than Windows Media Video (WVC1) (9 Advanced Profile (WVC1)) Has priority over Advanced Systems Format Is subtype of Advanced Systems Format
Technical Environment
Released	01 Dec 2004
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	Digital Preservation Department / The National Archives
Source date	11 Mar 2005
Source description
Last updated	02 Aug 2005
Note