WMP can play some mp4 files, impossible to read some, how do I solve this problem?

I use WMP version 12.0.7600.16667.

It can play mp4 files (so must have installed the codec requirred file), but cannot be played some I downloaded from youtube.

How can I fix it?

Help, please.

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In general, MP4 is just a file extension, and the codec used for encoding defines the format.

But as you say it is downloaded from YouTube, the issue isn't with the WMP (or any other player). If you use Internet Download Manager or YouTube Downloader or any other software, the problem occurs. This is due to changes made by YouTube in their Web site. Update the version of the software was found to solve the problem.

Tags: Windows

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