Lately I set up the Hauppauge 'WinTV 7' submission in order to acquire additional data in sequence on a number of clear QAM channels neglecting beginning from Media Center. later to configuring my neglecting channels, I played a distinguished superior .mkv file (I had instantly watched the video most recent night using Media Center, additional than did not catch the ending.), low and behold, my sound stopped at the: 30 mark! Endeavor to play the file by means of WinTV 7 and it played very well, beneficial audio during. Uninstalled WinTV 7 the .mkv file(s) play very well by means of Media Center/Media Player.