Rewritable Magneto Optical Disk is designed for use with large scale, high security, or permanent storage applications and Hewlett-Packard Jukeboxes. Offers a 2.3GB capacity with a 512 bytes/sector (2X) write speed. Provides easy data access and permanent data storage that can't be altered or erased. Antistatic shell coating prevents static buildup which can cause read/write errors. Magneto-Optical Disk is engineered to meet and surpass ISO/IEC/ANSI standards.