Title:
光ディスク装置及び光ディスク媒体の交替領域設定方法
Document Type and Number:
Japanese Patent JP4744126
Kind Code:
B2
Abstract:
On an optical disk medium, a spare area is allocated separately from a recording area. If the recording area includes a defective sector, alternate recording for the defective sector is performed in the spare area. An optical disk drive comprises: a medium information acquisition part which acquires, from the optical disk medium, medium information specific to the medium; and an area size determination part which determines the spare-area size suitable for the medium on the basis of the acquired medium information. The medium information is information about, for example, a media manufacturer, and a media type number. Further, there is provided a table which stores the relationship between the medium information and the optimum size of the spare area.
Inventors:
Kenji Akahoshi
Taku Hoshizawa
Taku Hoshizawa
Application Number:
JP2004344217A
Publication Date:
August 10, 2011
Filing Date:
November 29, 2004
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立エルジーデータストレージ
株式会社日立エルジーデータストレージ
International Classes:
G11B20/12; G11B7/004; G11B20/10; G11B20/18
Domestic Patent References:
| JP2002312950A | ||||
| JP2000231727A | ||||
| JP7235139A | ||||
| JP1122080A | ||||
| JP2001297516A | ||||
| JP2000293954A | ||||
| JP2002279635A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation