If Youtube videos do not play reload the page, that's a Youtube bug.
Or maybe now, a few years later, it's a new bug ;-)

Amon Tobin - Bloodstone

Gil Scott-Heron - New York Is Killing Me (Chris Cunningham Visual Remix)

Röyksopp - Senior

The Specials - International Jet Set (2002 Remastered Version)

Fat City Reprise - Long Gone