DEFECT SCAN METHOD AND A DISC DRIVE USING THE SAME TO IMPROVE ACCURACY OF DISC DEFECT DETECTION

摘要

PURPOSE: A defect scan method and a disc drive using the same are provided to implement more accurate disc defect detection by applying a proper recording density determined separately from that of the read/write channel.;CONSTITUTION: A defect scan method comprises a step of determining a recording density appropriate for disc defect detection in consideration of an affect by compositions of a disk drive except a disc(S410), and a step of performing disc defect detection applying the determined recording density(S420). The recording density for disc defect detection is determined independent of the recording density applied in data read/write.;COPYRIGHT KIPO 2010