1.3GB Magneto Optical disk Verbatim 5.25" - 130mm, Rewritable, Formatted Your PURCHASE is for ONE Verbatim MO 1.3gb DISK. 5.25-inch 1.3gb (Verbatim) rewritable magneto optical disk. Verbatim 89109 1.3GB Optical Disk Rewritable This Verbatim 5.25" MO disk is ideal for desktop publishing, medical imaging, legal and financial applications, and multimedia creations. 5.25" MO disk erase, update, and archive data repeatedly without fear of data loss. MO disk is certified to withstand over 100,000 insertions in optical disk libraries/jukeboxes, and archival life exceeds 40 years! This Verbatim's MO Disk is specially designed to withstand repetitive mechanical handling. Unique features like the slip ring and plastic centered hub add unparalleled reliability, especially in Jukebox environments. And, the media surface has a special protective coating to safeguard information for a lifetime of service. The disk is 100% certified and formatted. Made in Japan