Just attemting to play MKV with my MBP - 16 gig / SSD HD. Works fine when playing ~local~ to the laptop. With tunderbolt-hdmi adapter - going into my AVR to play onto my 65" screen......using VLC I get audio/video dropouts. Using Blu-Ray Player - I get audio out of sync. I don't intend to use my MBP as a HTPC but for the occasional times I want to just feed it through my HT gear, I'd like it to work.