Greater than 15-GB-capacity DWDD-MO recording using a DVD dimensional optical head Kai, S. ; Fukumoto, A. ; Aratani, K. ; Yoshimura, S. ; Tsutsui, K. ; Arai, M. ; Takeshita, Y. Abstract Publication: Optical Memory and Optical Data Storage Pub Date: 1999 Bibcode: 1999SPIE.3864...75K