Competitions according to DDCCR are divided into four divisions: division A Musical Dressage (example Vanda Gregorova and Roxi; 5,5 MB video), division B Heelwork to Music (example Alena Smolikova and Skip; 4,1 MB video), division C Freestyle (example Way and I; 3,3 MB video) and division D Dances with Dogs (in Czech as Tanec se psem). They differ on how should routine look.
More about diferences between them at Paws n Music Assotiation's web.