Method of verifying defect management area information of optical disc

A method of verifying whether defect management area (DMA) information is properly generated or updated in a recording and reproducing apparatus which records or reproduces information on or from an optical disc with the DMA information, the method comprising:

• setting a test reference according to a test mode;
• generating test information, from the DMA information which does not have any relation to actual defects, which is generated or updated by the recording and reproducing apparatus, according to the test mode;
• and
• executing a test for verifying the test information using the test reference in the reinitialization test mode.

A method of verifying whether a recording and reproducing apparatus properly translates and processes defect information, the method comprising:

• preparing a test disc having known physical defects and a test reference DMA mirror file according to a test mode;
• generating test information based on having the recording and reproducing apparatus perform the test mode on the test disc;
• and
• conducting a verification test on the test information.

DMA information which is properly generated by a recording and reproducing apparatus using the process of:

• performing a process according to a test mode on a test disc containing known physical defects and a test reference DMA mirror file using the reproducing and recording apparatus to generate the DMA information;
• generating test information from the generated DMA information;
• and
• comparing the test information with reference test information to determine a verification of the recording and reproducing apparatus.