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 ;-)

The Karminsky Experience Inc. - Exploration

Flying Lotus - Galaxy in Janaki

Venetian Snares - Felbomlasztott Mentokocsi (Bong-Ra Remix)

Kava Kon - Palace Of The Tiger Women (Kilimanjaro Darkjazz Ensemble Rmx)

Dam Mantle - Not A Word