[brazen1]

Strangely enough, MPC-BE does not honor the PCF.xml very well but MPC-HC does.  Install MPC-HC, adjust it, and edit this code into your PCF.xml.  Then let me know if it works.  TIA.

<playercorefactory>
  <players>
     <player name="MPC-HC" type="ExternalPlayer" audio="false" video="true">
       <filename>C:\Program Files\MPC-HC\mpc-hc64.exe</filename>
       <playcountminimumtime>1140</playcountminimumtime>
     </player>
   </players>
  <rules action="prepend">
     <rule filetypes="mkv" player="MPC-HC"/>
  </rules>
 </playercorefactory>