Approximately 30% smaller file for the high quality version. This looks fine on a good system, much smoother then the others and little pixelation. On a slower computer though, since i tested it on one, it did come across choppy. This was mainly due to the processor and video card not being up to processing a high quality video. We may in fact need to have a lower resolution one just for the factor of slower systems. Otherwise we are eliminating a large amount of people that may otherwise use the system. Low end processors, low memory or integrated video cards are the main culprits to this issue. Also, wide screen version looks fantastic if we know that’s the only people that will be watching it, but we don’t. If we put a wide screen movie onto someones system that is running an older monitor, the video will overlap the framing.