We know that Windows Media Player has built-in support for AVI file playback, but sometimes when we play AVI on Windows Media Player, we may run into problem of playback failure. Generally speaking, there are two causes leading to this problem.
One of the cause is that if the AVI files are encrypted, corrupted or damaged, they can not be played on Windows Media Player. In such cases, the feasible solution is using a third-party tool to decrypt or repair the files.
The most common cause of Windows Media Player won't play AVI is that the codecs of AVI are not supported. AVI is only a container format and the decisive factor of the video playback depends on the various video and audio codecs. If an AVI video contains a codec that is not supported by Windows Media Player, then Windows Media Player just won't play this AVI video. And there are three solutions offered in this tutorial to solve this incompatibility issue.