Wobble-address format of the Blu-ray Disc

Author

Furumiya, Shigeru ; Kobayashi, Shoei ; Stek, Bert ; Ishibashi, Hiromichi ; Yamagami, Tamotsu ; Schep, Kees

Author_Institution

Storage Media Syst. Dev. Center, Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

fYear

2002

fDate

2002

Firstpage

266

Lastpage

268

Abstract

Recently, a number of companies announced the Blu-ray Disc format. The format is based on a blue-laser diode 405 nm, an objective lens with a high numerical aperture (NA = 0.85), a disc with a thin cover layer (0.1 mm. thick), and phase-change recording on a groove-only substrate. The rewritable area of the Blu-ray Disc has a fixed track pitch of 320 nm and a scalable linear density that results in a capacity of 213 GB or 25 GB on a CD-size disc. Further improvement of media technology will allow higher linear densities and extension to dual-layer. In this paper we explain the basic concept of the wobble-address format of the Blu-ray Disc and demonstrate its robustness experimentally.

Keywords

lenses; optical disc storage; 0.1 mm; 213 GB; 25 GB; 320 nm; 405 nm; Blu-ray Disc; CD-size disc; blue-laser diode; fixed track pitch; groove-only substrate; media technology; numerical aperture; objective lens; phase-change recording; rewritable area; robustness; scalable linear density; wobble-address format; Apertures; Diodes; Distortion; Electronics industry; Footwear industry; Industrial electronics; Information retrieval; Laboratories; Lenses; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Memory and Optical Data Storage Topical Meeting, 2002. International Symposium on

Print_ISBN

0-7803-7379-0

Type

conf

DOI

10.1109/OMODS.2002.1028636

Filename

1028636