Patent ID: 6182250
Filing Date: 2001-01-30
Classification: G11B

Abstract:
A method for recording data on a data storage medium having a plurality of discs and a plurality of read/write heads, each disc having at least one recording surface, each read/write head associated with a particular recording surface, each recording surface having a plurality of zones, each zone is vertically aligned with a same zone on each surface of each disc, said method comprising the steps of:selecting a first zone;determining a Bits Per Inch (BPI) error rate for each read/write head for the first zone;ascertaining a deviation factor from a nominal BPI recording density associated with the first zone for each read/write head based on the BPI error rate;calculating a recording frequency corresponding to the deviation factor ascertained for each read/write head; andusing each read/write head at a corresponding recording frequency to access data in the first zone on each respective recording surface.