yep - doom1 episode1, best part of any game ever. mind you, it's just too short...i finished it in 5:11.
ftp://competn.doom2.net:8002/pub/compet-n/doom/movies/ep1-0511.zip , I think the URL is right, can't check at work, if you feel like reliving the old days and you're short on time :). plays back fine with prboom or original doom.exe.
(time doesn't include e1m8 - historical reasons, when doom running was first done, you couldn't time eXm8 levels, so it's not included under the rules. skip e1m8, it's dull as sticks.)