Abstract: A system and a method of controlling a processing device for automatically and continuously processing discs are disclosed. The method comprises: determining if a tray in a processing system is opened by adapting a first sensor; determining if any one of the discs is loaded in the tray by adapting the second sensor; in the event of the tray being opened and one disc being loaded, unloading the loaded disc by adapting a transporting device; in the event of the tray being opened and no disc being loaded, loading one disc by adapting the transporting device; and closing the tray for processing the one disc being loaded in the tray transported by the transporting device and controlled by the computer.