It does not play MKV files ! I hope they will fix that before Microsoft releases it to the public !
Media Player beta test for #XboxOne will not play MKV files like you said !?! @majornelson @XboxP3 @XboxQwik #sosad pic.twitter.com/PtyO4NfhgG
— Gaming Phanatic (@Vampero) August 25, 2014