Abstract: The invention relates a loading and unloading device for x-ray film cassettes, said device being further developed in such a way that a number of exposed x-ray films having different formats can be haphazardly delivered to a storage place, and in such a way that the filling height (H) as well as the number of x-ray films in storage can be reliably measured. For this purpose, a light-tight storage magazine is positioned in the film conveyor track of the loading and unloading device, said magazine being provided with a single sensor which measures the number of films introduced into, and the height (H) of the stack of films present in the magazine.