Does the video play back normally in the iXpand drive app? If so it may be related to the video codec and the video player on the computer.
what iphone do you have and if it is 7 or above what video format are you capturing in? 7 and above default to “High Efficiency” in settings > camera > formats. this shoots in h.265 which may not work with all media players. if this is the case you can either convert the videos or change the format settings to “Most Compatible” this will shoot in h.264 which is more widely compatible.
