When I try to play M2TS files through Mezzmo on my WD TV Live Plus device, Mezzmo doesn't recognize the M2TS extension and just shows the file names without the extension. When I try to play them, it gives me an unrecognized format error.

When I switch my WD TV Live Plus to use a network share, it'll play the M2TS files just fine. Any idea what is wrong? I believe they stopped working after 1 of my automatic Mezzmo software upgrades. I upgraded this morning to the latest version just to be sure and the problem is the same with the current version. Any thoughts?