Patent ID: 6553532
Filing Date: 2003-04-22
Classification: G06F,G11B

Abstract:
A method of recording and reproducing information on and from a disk ECC-block by ECC-block, every ECC block being composed of plural sectors, the method comprising the steps of:generating a recording command containing information of a recording position on the disk; storing the information of the recording position into a nonvolatile memory; recording data on the disk in response to the recording command; in cases where power supply is turned on after interruption of power supply terminates, detecting a specified ECC block from the information stored in the nonvolatile memory, the specified ECC block being adversely affected by the interruption of power supply during the recording of data on the disk; generating one of a reproducing command and a verify command for at least one sector of the specified ECC block; reproducing data from the specified ECC block on the disk in response to the one of the reproducing command and the verify command; deciding whether or not the reproduction of data from the specified ECC block succeeds or fails; and in cases where it is decided that the reproduction of data from the specified ECC block fails, recording data on a whole of the specified ECC block to convert the specified ECC block into a normal ECC block.