METHOD FOR DETECTING DEFECT MANAGEMENT AREA INFORMATION OF DISC AND TEST APPARATUS FOR PERFORMING THE SAME

摘要

PURPOSE: A method for detecting defect management area information of a disc and a test apparatus for performing the same are provided to verify whether defect management area information is normally generated and updated during re-initialization without certification while a secondary defect list is converted. CONSTITUTION: A C-1 disc(201) is a disc having only physical defects to test a disc driving unit capable of recording/playing information on a rewritable disc. A DMA mirror file providing part(203) includes primary defect list and secondary defect list information and provides a DMA mirror file which is test reference information satisfying a condition where a supplementary spare area is not full. A reference disc driving unit(205) is a disc driving apparatus which is modified to test an apparatus capable of recording/playing information on the disc. A C-2 disc(207) is a disc satisfying a DVD-RAM condition of a phase change recording method and having 4.7GB. A unit(209) for driving a disc to be tested is a disc recorder/player capable of recording/playing information on a rewritable disc. A verifier(215) verifies a C-2 disc DMA mirror file(213) by using predicted reference information. After re-initialization without certification mode is performed, test information is generated from generated defect management information. The predicted reference information and the test information are compared to provide verification result with respect to the test information.