Vista Media Center just won't play MKV files


Standard Member
Hi there,

My Vista x64 Media Center just won't play MKV files. Windows Media Player plays the files just fine (according to GraphStudio all the needed codecs are in place). I've made the registry changes so the MKV extension is known to Windows and a double-click on a MKV file plays the file perfectly in Media Player.

In Media Center however I keep getting the error message 'Cannot play video. Windows Media Center cannot open the file.' when I try to play it through either MyMovies or the default video's section.

Any idea's???



Here's what I did to make it work:

1) Install Vista 64 Codec Pack: |MG| Vista Codec x64 Components 1.7 Final

2) Rename .mkv files to .m2v files

For some reason Media Center would not open my files just b/c the .mkv extension, but changed them to .m2v and it worked.



Active Member
Renaming files is not required.

You need to tell windows what the perceived/content types are and you must also set the permissions for that type of file.

The example below is for .mp4 file types, but it should work for others as well.

Just change the mp4 text to mkv.

Copy everything in red to Notepad and save as a .reg file and run it.

Windows Registry Editor Version 5.00

"Content Type"="video/mp4"


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