ASF

ASF (Advanced Systems Format, or Advanced Streaming Format) is a multimedia container format associated with Microsoft. It is the container format usually used by media encoded by the WMA and WMV series of codecs.

Related formats

 * WMA
 * WMV
 * DVR-MS
 * ASX

Identification
ASF files begin with bytes.

This represents the GUID, named "ASF_Header_Object".

Specifications

 * Internet Draft, 1998-02-26
 * v1.0, 1998-02-26
 * PDF
 * v01.20.03, 2004-12
 * DOC
 * HTML, from archive.org
 * HTML
 * v01.20.04, 2010-06
 * PDF
 * v01.20.06, 2012-01
 * XPS, from archive.org
 * (PDF used to be available at )

Software

 * Konvertor
 * VLC

Sample files

 * http://samples.libav.org/asf-wmv/

Links

 * MultimediaWiki article
 * Wikipedia article
 * MSDN: Overview of the ASF Format