One of my schools has had a video transferred to digital format. It's now a 7 and a bit minute long .mov file. It's also very 'choppy' on playback (using Media Player Classic, latest version). I suspect that this is because the guy who did the transfer did it at the highest quality setting. What can I do to knock that setting down so that it will play smoothly, short of taking it back and paying more money for the guy to re-sample (?) it?