KEY TECHNOLOGIES TO REALIZE MAGNETOOPTICAL STORAGE OF OVER 7 GBYTES IN CD-SIZED DISK

Many types of recording technologies have been reported for future mag neto-optical (MO) storage. However, they have not been well discussed from the viewpoint of total recording technology including the recordi ng and readout methods, the pick-up technology and the signal processi ng technology. We propose key technologies for realizing MO storage of over 7 Gbytes in a CD-sized disk using a red laser, and describe the analytical and experimental results pertaining to each key technology.