File Formats Supported by Windows Media Player Versions 6.0 and Later

Windows Media Player 6.0

Code:
? Windows Media formats
File name extensions: .asf, .asx, .avi, .wav, .wma, .wax, .wm, .wmv, .wvx 
? RealAudio and RealVideo (version 4.0 or earlier)
File name extensions: .ra, .ram, .rm, .rmm 
? Moving Pictures Experts Group (MPEG)
File name extensions: .mpg, .mpeg, .m1v, .mp2, .mpa, .mpe

Note MPEG 2 requires third-party software or hardware decoders. 
? Musical Instrument Digital Interface (MIDI)
File name extensions: .mid, .rmi 
? Apple QuickTime (version 2.0 or earlier)
File name extensions: .mov 
? Macintosh AIFF Resource
File name extensions: .aif, .aifc, .aiff 
? Intel Video File
File name extensions: .ivf 
? UNIX
File name extensions: .au, .snd
Windows Media Player 6.1, 6.2, 6.4, 7, 7.1, Windows Media Player for Windows XP, and Windows Media Player 9 Series

Code:
? Windows Media formats
File name extensions: .asf, .asx, .avi, .wav, .wax, .wma, .wm 
? Audio Visual Interleave
File name extension: .avi 
? Moving Pictures Experts Group (MPEG)
File name extensions: m3u, mp2v, .mpg, .mpeg, .m1v, .mp2, .mp3, .m3u, .mpa, .mpe, mpv2

Note MPEG 2 requires third-party software or hardware decoders. 
? DVD Video
File name extension: .vob

Note DVD playback requires third-party software or hardware decoders and is supported only in Windows XP. 
? Musical Instrument Digital Interface (MIDI)
File name extensions: .mid, midi, .rmi 
? Apple Macintosh AIFF Resource
File name extensions: .aif, .aifc, .aiff 
? Sun Microsystems and NeXT
File name extensions: .au, .snd 
? Intel Video File
File name extensions: .ivf

Note Intel Video File support requires the Intel Video 5.x codec. 
? Windows Media Player Skins
File name extensions: .wmz, .wms 
? QuickTime Content
File name extensions: .avi, .mov, .qt

Note Windows Media Player can play back older forms of the QuickTime format only. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
316992 Windows Media Player Multimedia File Formats 
? Algebraic-Code-Excited Linear Prediction 
? UNIX
File name extensions: .au, .snd 
? Macromedia Flash
File name extension: .swf

Note Playback of Shockwave Flash files requires the Macromedia Flash plug-in.
For more information about these file formats and to test your Windows Media Player client using sample files, visit the following Microsoft Windows Media Player Web page:

http://support.microsoft.com/support/media...est/wmptest.asp

For additional information about file formats supported on older versions of Windows Media Player, click the article number below to view the article in the Microsoft Knowledge Base:

191346 File Formats Supported by Windows Media Player 5.2