The Sony EDM9100B magneto-optical disk provides you with comfortable portability and high capacity that doesn't preclude durability. Advanced polycarbonate substrate guarantees long work and shock resistance. All these features make Sony's magneto-optical disk a good solution for data storage. Small size of magneto-optical disks provides portability but high capacity doesn't preclude durability. Sony MO media features very low byte error rate and it is durable and resistant to shock. Exclusive stamping process improves accuracy.