I have been trying to encode some of my DVD's and when I stream them to my xbox the encodes have a very slight jitter or stutter to them. And when I mean slight it is barely noticeable but something is not right. It's usually only when the camera is panning across or there is fast movement. I am encoding h.264 in .mp4 at 2500kbs and using same as source for the FPS. I am streaming wireless to my router from my Imac and then am hardwired to my xbox. My router does support gigabit ethernet and wireless N so I don't think that is the culprit.