Sony 3.5" Magneto Optical Media
0Sony's original antistatic hard coat protects the disk against scratches and dust, and the shutter is made of a strong, lightweight and wear-resistant aluminum alloy which contains a high magnesium content to maximize smooth disk operation.
Sony 3.5" Magneto Optical Media - 128 MB - 3.50" - Rewritable - 512 Byte per sector