Verbatim MO disks can be erased, updated, archived and accessed repeatedly without fear of data loss… even after 40 years of continuous use. MO disks feature a special anti-static/dust-resistant coating that eliminates the problem of static charge, while protecting the cartridge against debris and moisture. Features: - Certified to withstand over 100,000 insertions. - Archival life exceeds 40 years. - Specially designed to withstand repetitive mechanical handling. - Unique features like the slip ring and plastic centered hub add unparalleled reliability, especially in jukebox environments.