I'm having a problem with all my blu-ray rips stuttering during playback. They seem to have a really slow frame rate. It mostly happens during action scenes, but occurs at other times too. Some are worse then others. Streaming them makes the problem worse. I figured it was maybe because I encoded them at too high a frame rate or something, but when checking the fps through Quicktime, they are all under 24fps. I rip with makemkv then use handbrake to encode at with these settings: resolution: 1280x720 fps: same as source advanced: ref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:weightb=0:trellis=0:weightp=0 All the bit rates are between 2000-4500kbps Purchased HD iTunes movies play fine. All the HD movies are synced to the AppleTV. Everything plays fine on iTunes. Any clues as to why this is happening?