I have been creating digital copies of some of my Blu Ray movies (down to 720p). Most work fine, except for animated movies. They stutter like crazy when I stream from iTunes to my 3rd gen Apple TV (cat 6) So, I simply tried to watch the movie directly on the machine (an older core2 iMac) using Quicktime - also major stuttering Here is the odd part. If I watch he same movie, on the same machine using the Mac Blu Ray player application, there is no stutter. The same is true if I use a Plex client on another machine and stream to it. Is there something with Quicktime that I am missing - settings? Doing something wrong?