Notes about the DCK file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The DCK file type is primarily associated with 'Resolume' by Edwin de Koning and Bart van der Ploeg. Real-time video editor/player for live video performances. The concept of Resolume: By pressing keys on the keyboard, you trigger and scratch video clips and apply effects. With a deck, you can save all the channels and their individual properties, and then load them all at once at a later stage.