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ADVANCED Codecs for Windows?
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➔ ADVANCED Codecs for Windows website
By popularity on Reddit, this Service is:
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Codec Pack apps
1 review of this app found across Reddit:
1 point
·
22nd Aug 2017
If they worked in VLC, but not in Vegas/WMP, you're missing the codec necessary to open the video stream in the .avi file.
I used this codec pack in the past to add MKV playback capabilities to Windows Media Center via Extenders, so it should fit your needs as well.