EDM-5200B 5.2GB MO, 2048 bytes/sector 5.25-inch rewritable magneto-optical disk maximum capacity of up to 5.2GB, are: 512 1024 4096B/sector, used in 64-bit operating system platform

SONY EDM-5200C 5.25 'MO, 5.2G box a piece.
100 million times to rewrite, disk read life of more than 50 years.
Uses:
It is widely used in the areas of e-mail access, medical image transmission and preservation, sound recording, financial record archiving, telecom order saving and software backup.
Packaging: single independent packaging
Capacity: 5.2G
Dimensions: 5 inches