Special Features:

Rewritable, high capacity, cartridge, material poly carbonate substrate, read, write and erase capabilities, reusable, cartride material plastic, 1024 bytes/sector, stores up to 650 megabytes of user data, for datd storage used on laser disk drives

Properties:

A flat item with a center hole, used as a storage medium for digital information. It can be of the read only or read/write type format. It can use optical or magnetic type heads for the placing or retrieving information. For items in cartridge or envelope form see disk cartridge, magnetic; disk, flexible. Excludes items used for sound or video recording see disk, sound recording; disk video recording.