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 ;-)

Adolfo Pacheco, Carmelo Torres y su conjunto - Mi Machete (Bigote Remix)

Los Reyes de la Milanga - Gusto a Nada (Bigote Graveton RMX)

Copia Doble Systema - Made in China (Bigote Remix)