i uploaded a movie thats an mpeg-4 and the bionics having a hard time playing it. its a 720p BDrip file. when i first started playing it the time lapse was goin really fast and the screen stayed blcak. if i moved the the cursor back a little i could see a picture but its frozen. i tried playing it several times with the same results and one time i got an error window saying not able to play file. any recommendations?