I don’t know MTS from WMV. BUT I do know that several HUNDRED dollars worth of CinemaNow purchases WON"t Play on my player. What’s with that!! BTW If it weren’t for WD HUB I would not have purchased ANY movies from CinemaNow, OR Blockbuster. Can’t everybody get on the right page? PLEASE! Great product but I’m starting to be afraid to update the firmware.