This has been discussed in other threads, i thought i would start it's own thread in hope it gets more attention and we can all work together to get some solution. Instead of me explaining the issue i'll just post what hipnetic has said. Quote: Just registered so that I could reply to this thread. I did some Googling on stuttering and found this thread. I've reported in the Handbrake forums and in the following Apple support forum thread that I'm having problems even with 720p content: http://discussions.apple.com/thread....readID=2599423 Note: There are several of us reporting the problem in that thread. To summarize, the problem is not related to the network. The movie has been fully loaded to the Apple TV's buffer. For those who do not own a new Apple TV, when the status bar is all white, the movie is fully loaded to the buffer. When it is only partially loaded to the buffer, the white portion of the status bar is how much has been loaded to the buffer, and the gray portion behind it, has not. The interesting thing is that it appears that the stutter/judder/dropped frames are actually *more* frequent when the movie is *fully* loaded to the buffer. That seems counterintuitive, but there you go. One person experiencing this problem theorized that perhaps the Apple TV is getting ambitious once it's loaded the movie to the buffer and is doing some sort of background task. In any case, the movie that I'm using to test with is Monsters vs Aliens. The opening scene (right after the film stock melts away) shows some part of the universe, with the camera panning through the asteroid rings around a planet, then centering the camera on another planet, which then explodes. That panning sequence is good for noticing stutter/judder. I have a few different flavors of this movie converted via Handbrake. All play perfectly smoothly on my Acer Revo nettop running Windows 7 and XBMC. These 720p files also appear to play perfectly smoothly on my iPhone 4 (but the screen is so small that it's possible that there's a glitch that I'm just not seeing). One person indicated that they did not see the problem on their iPad, which is important because one theory/concern of mine is that the Apple TV's 256 MB of RAM could be insufficient (the iPhone 4 has 512MB). But as I don't have access to an iPad I can't confirm this first-hand. My hope is to keep that thread towards the top of the Apple support forums and that they'll issue a firmware fix (assuming they *can* fix it). End Quote My experience has been, Video i have encoded for the original Apple TV using Handbrake when played back on the new Apple TV once the file is fully buffered onto the Apple TV it will stutter all over the place. New encodes i have done using the latest nightly build of Handbrake using the High Profile preset playback perfect with no stuttering. I am not 100% sure but i suspect this could be an issue with our TV's something to do with the fps and hz. Anyone experiencing similar issues please post your findings maybe we can put a finger on what is causing this issue.