Method of verifying defect management area information of disc and test apparatus for performing the same

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 supplementary spare area extension test mode;
• generating test information from the DMA information, which is generated or updated by the recording and reproducing apparatus, according to the supplementary spare area extension 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;
• generating test information based on having the recording and reproducing apparatus perform extending a supplementary spare area on the test disc;
• and
• conducting a verification test on the test information.

A method of verifying whether a recording and reproducing apparatus reads and processes defect management area (DMA) information properly, comprising:

• performing extending a supplementary spare area on a test disc having 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.

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

• performing extending a supplementary spare area 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.

A recording and reproducing apparatus verified according to the process of:

• performing extending a supplementary spare area 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.

A method of manufacturing a compliant recording and reproducing apparatus, comprising:

• manufacturing an uncertified recording and reproducing apparatus that updates and generates defect management area (DMA) information;
• and
• verifying whether the uncertified recording and reproducing apparatus is compliant with a standard, said verifying comprising:
• performing extending a supplementary spare area on a test disc containing predetermined defect information and test reference DMA information using the recording and reproducing apparatus to generate test information, and
• comparing the test information with reference test information to determine a verification of the recording and reproducing apparatus, the verification indicating that the uncertified recording and reproducing apparatus is compliant with the standard.

A disc recording and reproducing apparatus for recording and reproducing information on an optical disc, comprising:

• a light source to emit a light;
• a focusing element to focus the light onto the optical disc to record and reproduce the information;
• and
• a controller to control said light source, said controller being verified to update and generate defect management area (DMA) information by
• performing extending a supplementary spare area on a test disc containing predetermined defect information and test reference DMA information using the recording and reproducing apparatus to generate test information, and
• comparing the test information with reference test information to determine the verification of the recording and reproducing apparatus.

A disc recording and reproducing apparatus for recording and reproducing information on an optical disc, comprising:

• a light source to emit a light;
• a focusing element to focus the light onto the optical disc for recording and reproducing the information;
• and
• a controller to control said light source and to update and generate defect management area information after performing extending a supplementary spare area on the optical disc so that the defect management information is compliant with a standard.