Advanced Stream Redirector

Advanced Stream Redirector

Filename extension	.asx
Internet media type	video/x-ms-asf
Developed by	Microsoft

The Advanced Stream Redirector (ASX) format is a type of XML metafile designed to store a playlist of Windows Media files for a multimedia presentation.

It is used frequently on streaming video servers where multiple ASF files are to be played in succession. Both RTSP and MMS streaming protocols are supported, as well as HTTP.

ASX files have MIME type video/x-ms-asf (as do ASF files).

With the introduction of the WMA and WMV container formats in late 1990s, WAX and WVX extensions have also been introduced by Microsoft respectively.

Example

<asx version="3.0">
  <title>Example.com Live Stream</title>
 
  <entry>
    <title>Short Announcement to Play Before Main Stream</title>
    <ref href="http://example.com/announcement.wma" />
    <param name="aParameterName" value="aParameterValue" />
  </entry>
   
  <entry>
    <title>Example radio</title>
    <ref href="http://example.com:8080" />
    <author>Example.com</author>
    <copyright>©2005 Example.com</copyright>
  </entry>
</asx>

See also

Other playlist file formats

• M3U - The most common playlist format
• PLS - SHOUTcast
• XSPF - Xiph.Org Foundation
• WPL - Windows Media Player

References

External links

• MSDN Simple ASX
• MSDN ASX Elements Reference
• MSDN Adding Windows Media to Web Pages (For Webmasters)
• Creating Customized Web Experiences with Windows Media Player 9 Series
• A survey of playlist formats, 2003