Used MO Discs (Magneto-Optical Discs) - 10 Discs I am selling 10 used magneto-optical (MO) discs. They have been normally formatted to FAT32 with the standard allocation size before listing. These are used items, so there may be scratches and scuffs on the discs, cases, and labels. I am not currently considering lowering the price. Thank you for your interest.