Possibly the movie is in a format that isn't supported by the TV. Just using the wrong codec is enough reason.
What file types and codecs are supported by the TV (should be in the manual)? And what are the file type and codec of this movie?
i purchase samsung led D4003 in 2011 but i can play only jpeg and music file and i am unable to watch movie through USB. So please give me solution to unable this option through service menu.