Optical recording medium, recording/reproducing apparatus and recording/reproducing method
a recording medium and recording/reproducing technology, applied in the field of optical recording medium, recording/reproducing apparatus and recording/reproducing method, can solve the problem of requiring a considerable recording space for the defect lis
Inactive Publication Date: 2008-05-01
SAMSUNG ELECTRONICS CO LTD
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- Abstract
- Description
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- Application Information
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Benefits of technology
[0008] The present invention provides an optical disc on which defects are managed, and a defect management apparatus and method, which effectively manage a space required for a defect list for managing defects in a disc, and a computer-readable optical disc storing a computer program to control an apparatus to perform the defect management method.
Problems solved by technology
If a defective block occurs in the data corresponding to the physical address, the hard disc drive has to find a replacement block that replaced the defective block.
That is, a defect list entry is generated for each defective block, thus requiring a considerable recording space for the defect lists.
Method used
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[0039] Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below to explain the present invention by referring to the figures.
[0040]FIG. 1 is a block diagram of a data recording / reproducing device according to an embodiment of the present invention.
[0041] Referring to FIG. 1, the data recording / reproducing device includes a writing / reading unit 2 and a controlling unit 1.
[0042] The writing / reading unit 2 comprises a pickup and records / reads data on / from a disc 4 on which defects are managed according to the present invention. The controlling unit 1 performs defect management according to the present invention. In an embodiment of the present invention, the controlling unit 1 uses a verify-after-write method to find defective data by recording data by a predetermined unit and verifying the...
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Abstract
An optical recording medium including a user data area and an SA / DL area in which a replacement block to replace a defective block in the user data area, and information regarding a defect corresponding to the defective block, is recorded, wherein the information regarding the defect includes a consecutive defect list entry including information regarding defects located in consecutive locations of the user data area, and an apparatus, and a method of, using the optical recording medium.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. patent application Ser. No. 11 / 028,207, filed Jan. 4, 2005, now pending, which claims the priority of Korean Patent Applications No. 2004-372, filed on Jan. 5, 2004, and No. 2004-9846, filed on Feb. 14, 2004, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to an optical recording medium, recording / reproducing apparatus and recording / reproducing method for defect management. [0004] 2. Description of the Related Art [0005] Disc defect management is a process of compensating for data loss caused by a defect in a user data area of a disc, i.e., a defective block, by writing user data recorded in the defective block to a new portion of the user data area. Generally, disc defect management is performed using a linear replacement ...
Claims
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IPC IPC(8): G11B20/18G11B7/007G11B5/09G11B20/12
CPCG11B7/00736G11B20/1879G11B20/1883G11B2020/1826G11B2220/2537G11B2020/1893G11B2020/1896G11B2220/20G11B2220/237G11B2020/1873G11B7/007G11B20/1889
Inventor HWANG, SUNG-HEEKO, JUNG-WAN
Owner SAMSUNG ELECTRONICS CO LTD