So, I downloaded MKV2M4V from the App Store and I guess it does exactly what I wanted to do. Now I can covert my MKVs to M4Vs quickly by changing the containers and not having to spend a lot of time recoding anything through HandBrake. Everything streams just fine to my AppleTV. Using AirMedia, everything streams just fine to my iPad and iPhones. He only problem I have is the when I try to play these videos on my laptop, the audio is messed up. All I hear are clicks and buzzes. Any advice? Thanks.