Patent ID: 8619524
Filing Date: 2013-12-31
Classification: G11B

Abstract:
1. A recording reproducing apparatus having a defect management function which conducts recording while repeating recording and verification alternately by using a medium having a user data area, a replacement area, and a management information storage area updated when using the replacement area, the recording reproducing apparatus comprising: a read after write unit comprising a data recording unit to record data and a data verification unit to verify recorded data; a registration range determination unit which determines a range to be subject to defect list registration into the management information storage area, on the basis of a result of recording or verification in the read after write unit; a list registration unit which conducts registration in the defect list on the basis of a result supplied from the registration range determination unit; and a replacement processing unit which controls the recording unit to record alternative data of defective blocks to the replacement area on the basis of a result of recording or verification; wherein the registration range determination unit handles a predetermined number X blocks (where X is a natural number) beginning with a recording error generation address in the data recording unit as defective blocks, a replacement processing unit controls the recording unit to record the alternative data of the X blocks to the replacement area on the basis of a result of recording or verification, and the list registration unit registers the X blocks into the defect list.