This transfer ribbon is a Genuine Rimage product designed for use with the Rimage Everest 400 and Everest 600 thermal disc printers. Prints 500 Discs. ~ Rather than printing directly to the disc, the Everest 600 printer prints a reverse image to the transfer ribbon, which is then applied to the Everest compatible disc surface. Use one to one when printing black only or one to two when printing with a CMY ribbon.