OSAR

OPTICAL DISKS FOR STORING DOCUMENTS, IMAGES AND DATA; OPTICAL DISK DRIVES PROVIDING BOTH READ AND WRITE FUNCTIONS; OPTICAL DISK TRANSPORT MECHANISMS FOR TRANSPORTING OPTICAL DISKS INTO AND OUT OF OPTICAL DISK DRIVES; AND CONTROLLERS COMPRISING MICROPROCESSORS TOGETHER WITH COMPUTER PROGRAMS FOR KEEPING TRACK OF DOCUMENTS, IMAGES, AND DATA STORED IN OPTICAL DISKS