Method for recording on optical recording medium and apparatus using the same

Abstract

A method and apparatus for recording on an optical recording medium, including the recording of management information, are described as a standard for the write-once Blu-ray disc. The management information is recorded in a management area of the disc, such as a temporary defect management area (TDMA), and includes record status information and update information. The record status information isa space bitmap (SBM) indicating whether a recording operation has been performed for a predetermined area of the disc, and the update information is SBM update information indicating whether the record status information is to be continuously managed. The SBM update information controls the state of an SBM-on / off function for each of a plurality of recording areas and may be in the form of eitherstart position information and length information corresponding to the respective areas or an SBM update flag. The SBM update information is recorded in the TDMA and is stored in a memory of an optical disc recording / reproducing device for use during recording and reproducing operations. At the time of recording in the predetermined area, an SBM-on state enables a logical overwriting operation tobe performed as necessary.

Description

[0001] The applicant of this application is LG Electronics Co., Ltd., the application date is November 27, 2003, the application number is 200380110102.9 (the international application number is PCT / KR2003 / 002597), and the title is "Method for recording on optical recording medium and using its A divisional application of the patent application for the device". technical field [0002] The present invention relates to optical recording media, and more particularly to methods and apparatus for recording on optical recording media, such as write-once blue laser discs (BD-WO), where recording in a random pattern on the optical disc consists of spatial bitmap (SBM ) is managed by record management information so that logical overwrite (LOW) operations can be selectively performed. Background technique [0003] Data recording devices and media using optical read / write devices are roughly classified according to their writing ability or flexibility. Among read-only optical record...

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Problems solved by technology

At the same time, BD-WO discs do not have rewriting capabilities, so disc management is more challenging since data recording can only be performed once on any given area of ​​the disc

[0012] In any case, the management of defective areas is crucial during data recording, especially for high-density DVDs such as blue laser discs, but the existing BD-WO standard is insufficient, and this problem caused by the use of multiple record layers

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