Information recording and/or reproducing apparatus and method

An information recording and/or reproducing apparatus, comprising:

• means for writing and/or reading information signal to and/of from a user data area, including a plurality of logical blocks, on a disc-shaped recording medium having also a management information area, irrespectively of the existence of a secondary defect in the user data area, while detecting a secondary defect having taken place in the disc-shaped recording medium;
• means for storing, as a logical block number, a secondary block detected by the writing and/or reading means in any of the logical blocks of the user data area;
• and
• means for supplying as an output the secondary defect stored in the defect storing means, after write and/or read of the information signal to and/or from the writing and/or reading means.

An information recording and/or reproducing method, comprising the steps of:

• writing and/or reading information signal to and/or from a user data area, including a plurality of logical blocks, on a disc-shaped recording medium having also a management information area, irrespectively of the existence of a secondary defect in the user data area, while detecting a secondary defect having taken place in the disc-shaped recording medium;
• storing as a logical block number a secondary defect having taken place in any of the logical blocks in the user data area;
• and
• supplying as an output the stored secondary logical block number after write and/or read of the information signal.