Information recording and reproducing apparatus, disc...

Details Information recording and reproducing apparatus, disc... Information recording and reproducing apparatus, disc...

2007-10-16

2007-10-16

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

By medium defect indicative control signal

C369S053150, C369S047150

Reexamination Certificate

active

10768445

ABSTRACT:
An information recording and reproducing apparatus, a disc apparatus and a defect area replacement method are disclosed for accurately detecting a defect area for each small area of a recording area of an information recording medium and replacing the defect area per small area. The information recording and reproducing apparatus for recording and reproducing information in an information recording medium having a plurality of recording areas each of which includes a plurality of small areas includes a verification execution part iteratively executing a verification operation on small areas of a recording area and a small area replacement part replacing a small area determined as a defect area greater than or equal to a predefined number of times during iterative execution of the verification operation by the verification execution part.

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