AFAIK youtube vids always default to lowest quality, which has crappy-bitrate mono audioThe &fmt=18 forces it to use a higher quality, which looks a bit sharper but more importantly has good quality stereo audio. Although from a quick google it sounds like lots of videos no longer work with the &fmt=18 on the end :(
(
Tangy bzzzzzzzzt,
Thu 12 Aug 2010, 21:55,
archived)
