I've seen this on USB video file playback. All too often and the dozen times I really checked it out I found a video encoding error in the file being played. I know, I know, a consumer would never accept that but what to do?
My Series 750 will occasionally play a loop on the audio. It almost always happens on dialog. It will repeat a very small segment (maybe a second) of audio that sounds like the Star Trek Enterprise phasers being fired (the video keeps playing just fine) and it requires me to shut off the TV and turn it back on. Any clues as to what this may be and how to fix it?