- Windows Media Player does not support the file format or the codec of the media file you are trying to play.
- Some of the Windows Media Player files are missing or damaged.
- The media file is damaged.
- The media file uses a codec that is not installed.
- The operating system does not have audio capabilities. For example:
- There is no audio device in the computer.
- The correct audio device driver is not installed or is disabled.
- You are using both Windows NT and Windows 2000 Terminal (this configuration has no audio capabilities).
- Windows XP Terminal is configured to not play audio.
Important Windows Media Player does not support the playback of every type of media file available currently, but does provide support for the most common types of media files. Therefore, verify that your media file is a supported type. If it is not, do not use the methods after method 1. If Windows Media Player does not support the file format you are using, contact the distributor of the file for information about the availability of a viewer for the file.
For additional information about a specific error message, click the article numbers below to view the articles in the Microsoft Knowledge Base:
Method 1: Verify That Windows Media Player Supports the File Format You Are UsingWindows Media Player supports the file formats in the following list:
- Windows Media formats File name extensions: .asf, .asx, .avi, .wav, .wax, .wma, .wm, .wmv
Note Windows Media Player versions 6.4 and later support .wmv files.
- Moving Pictures Experts Group (MPEG) File name extensions: m3u, mp2v, .mpg, .mpeg, .m1v, .mp2, .mp3, .mpa, .mpe, mpv2
- Musical Instrument Digital Interface (MIDI) File name extensions: .mid, midi, .rmi
- Apple QuickTime, Macintosh AIFF Resource File name extensions: .qt, .aif, .aifc, .aiff, .mov
- Unix File name extensions: .au, .snd
Method 2: Determine Whether the File You Want to Play Is DamagedIn Windows Media Player, play a different file that uses the same file name extension as the file that you were using when you received the error message. If the other file plays correctly, then the original file you were trying to play may be damaged. If you receive an error message when you play each of the files, continue to the next method.
For additional information about file types that Windows Media Player 7 supports, click the following article number to view the article in the Microsoft Knowledge Base:
Method 3: Reinstall Windows Media PlayerRemove Windows Media Player, restart the computer, and then reinstall Windows Media Player.
Note You must use the latest version of Windows Media Player. To download the latest version of Windows Media Player, visit the following Microsoft Web site: