MKVs no longer work after installing Win8

I recently installed the Win8 Release Preview. I have since been able to get all my codecs reinstalled and all files play normally on my PC. However, I can no longer play them on the Xbox 360. I have tried both Windows Media Center and Tversity (currently running 1.9.7).

Anybody had any luck with the Win8 update and MKV files on the 360?

Hi. I use version 2.3 and windows 8. This wasn’t working for me until I opted NOT to use DirectShow for wmv transcoding in the transcode settings. This means it will use ffmpeg.

On my system, transcoding to a maximum of 1280*720 is fast and looks very good.

I hope this helps.