All this week in our series World Wide Video we're celebrating 20 years of internet with some of the web's craziest and most intriguing video creations - and this time we meet up with a duo from Berlin who call themselves Datenstrudel. They're an agency that even creators Jörn Hintzer and Jakob Hüfner have trouble defining exactly, but suffice to say that a certain chaos of technology and bright ideas results in everything from screenplay concepts to music videos, animated films, theatre, commercials and even live events. And as pioneers in the field of internet videos, that's where they made their name.