The DMC world championships is a dj trick competition focusing on the a new art form called turntablism. Turntablist turns records into a musical instrument..

The DMC organisation's commitment to exposing and inspiring DJ art and DJ talent and to raising DJ standards, was a world-wide effort with branches in 40 nations playing their part. Whilst "Mixmag" in the UK drove the tribes of fans to appreciate great DJs and great music, "MIXER", DMC's American publication, planted big DJ seeds across the USA's traditional rock driven industry. As the world opened up to club DJs who no longer needed to talk into microphones, so jocks learned that, 'have record box will travel' as a new breed of DJ saw no international boundaries and their world-wide appearance fees expanded beyond their wildest dreams. Better still - this wasn't a Brit or a US DJ thing - this was for everyone because it was about great mixing - not about personality.

(This excerpt was taken from dmcworld.com)