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 ;-)

Sonic Youth - Bull In The Heather

Tucker - Slash and D-Deck

Vessels - The Sky Was Pink

The BPA - Toe Jam feat. Dizzee Rascal & David Byrne

Manyfingers ft. Chris Adams & Liz Sharkey - Youre no siren