Patent ID: 8259545
Filing Date: 2012-09-04
Classification: G11B

Abstract:
1. A controller of an apparatus for recovering disc management information of a recording medium, the apparatus comprises a pickup head for accessing the recording medium, the recording medium comprising an user data area and a plurality of temporary disc management areas (TDMAs) on at least one recording layer, wherein each TDMA is for storing disc management information, the controller is used for: controlling the pickup head unit to search the TDMAs for readable disc management information which is included in an in-use TDMA of the TDMAs; determining whether a piece of information associated with an inconsistency flag of the readable disc management information is reliable or not; when the controller detecting that the piece of information associated with the inconsistency flag is unreliable, determining at least a detection condition according to the information which is included in the readable disc management information and the in-use TDMA, and controlling the pickup head unit to detect the recording medium to determine an update on the piece of information associated with the inconsistency flag, under at least a detection condition; and generating update disc management information according to the readable disc management information and the update on the piece of information associated with the inconsistency flag.