Playback issue MP4, MKV files etc

I’m new here. So I don’t know exactly how using this board / forum.

I just wanted to say that also I have problems with stuttering playback of MP4 files and MKV not even playing.

Thanks of the solution of RoofingGuy it solved my problems !

http://community.wdc.com/t5/WD-Elements-Play/MKV-issues-header-compression-already-removed/td-p/190120

MKVFix

v4.3.0 of MKVToolnix

Yeah that worked for me as well

This works for me as well. Many Thanks !!