I currently do not store any of my MP4 files on my ATV's hard drive. I store them on an external 1TB drive and point the Library to it. My question is this: Am I losing any playback quality? Since the files are not being held on the ATV itself does this affect playback quality? The reason I ask is this......recently I have noticed some staggering in some of the movie playback. Usually an action scene (iron man rip) that just plays a little jumpy or something. Also, my appletv lost connection with the library and stopped playback the other night twice in the middle of a movie. Am I better off storing these movies on the 1TB as backup and when I want to play them putting them directly on the ATV hard drive and playing from there?