Windows Media Player 11 Help
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Codec Error and Problems While Playing Videos
When you try to play audio/video files on your Windows Media Player 11, codec error messages similar to the ones given below, may be displayed on your screen, or you may experience a problem in which the audio plays and video files do not play.
Windows Media Player cannot play, burn, rip, or sync the file because a required audio codec is not installed on your computer.
A codec is required to play this file. To determine if this codec is available to download from the Web, click Web Help.
Windows Media Player cannot play the file because the required video codec is not installed on your computer.
Invalid File Format.
The main cause of this error is a missing codec. If a required codec is not installed on your system, you will be unable to play a file that needs to use it and error message will be displayed on the screen.
To resolve these errors, and to ensure that such problems do not occur in future, it is recommended that you configure your Media Player 11 to automatically download codecs to your system. You can do this by performing the steps listed below:
You need to proceed with advanced troubleshooting only if you are unable to resolve the error by enabling automatic codec updates. The steps listed below are a bit complex and you must perform them only if you are comfortable with them. Otherwise, it is recommended that you seek the help of a more experienced computer user or a technician.
Step 1: Check if the codec required to play your file is installed on your computer.
Step 2: Install the required codec.
Step 3: Obtain and install third-party codec.
Depending on your requirement, you can obtain information regarding third-party codecs from the following Microsoft Knowledgebase Web sites:
Note : If you are on a network, it is recommended that you contact your IT department or your network administrator to obtain or help you obtain the required codec and install it on your system.