Ok so ive been ripping stuff for my atv and all has been good. however I patched my ATV last night to use an external HD. now sometimes I have an audio sync issue that only effects the sound coming out of the analog outs on the ATV as thats how I have it hooked up to my AVR. but its not all the time. its like after I've been watching it for awhile I can see the audio coming away from the video slowly. but if I lower my surround sound and turn up my tv (connected via HDMI) the audio is in sync perfectly with the video....its odd but usually if I stop watching video for a bit and come back to it its back in sync with the surround sound.