animale81
Not sure how far we go with this, just so we are all straight about your issue, you cannot chose CoreAVC under MP config\video player settings, or you can and it just does not use, are these files you are trying to play definitely h.264\x.264\AVC1 and not just avi files (DX50 normally) in mkv container, because if they are the CoreAVC does not play them, and they will default to MPC codec.
Not sure how far we go with this, just so we are all straight about your issue, you cannot chose CoreAVC under MP config\video player settings, or you can and it just does not use, are these files you are trying to play definitely h.264\x.264\AVC1 and not just avi files (DX50 normally) in mkv container, because if they are the CoreAVC does not play them, and they will default to MPC codec.
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