Patent ID: 6469854
Filing Date: 2002-10-22
Classification: G11B

Abstract:
A system for recording the history associated with writing data onto rewritable media comprising:an access head operative to write data onto rewritable media and to read data from rewritable media; a drive for moving the rewritable media past the access head; a write formatter in communication with the access head, the write formatter operative to format data into a device block to be written onto the rewritable media; a read formatter in communication with the access head, the read formatter operative to detect errors in data read from the rewritable media; and a control unit in communication with the drive, the write formatter, and the read formatter, the control unit operative to (a) enable the write formatter to form a device block comprising the data, (b) enable the write formatter to write at least a portion of the device block onto the rewritable media, (c) enable the read formatter to detect an error in the written portion of the device block, (d) determine an error recovery procedure based on the detected error, (e) enable the drive to position the rewritable media relative to the access head based on the determined error recovery procedure, (f) enable the write formatter to insert an indication of the determined error recovery procedure into the device block, and (g) repeat (a) through (f).