 It sold on an OEM basis only to them while CDC sold MPI product to third parties under its brand name.It became a major player in the HDD market.It was the worldwide leader in 14 inch disk drive technology in the OEM marketplace in the late 1970s and early 1980s especially with its SMD (Storage Module Device) and CMD (Cartridge Module Drive), with its plant at Brynmawr in the South Wales valleys running 24/7 production.