Since the videodisk was designed as Read Only Memory (ROM), many different write-once optical storage systems have come out; know as the Write Once Read Many (WORM) disk.

• 由于视频盘被设计成是只读存储器，许多不同种类的只写一次的光学存储系统应运而生，被称为写一次读多次（WORM）盘。