A method for increasing data storage on a hard disk drive is disclosed herein, the method including determining a capacity goal for the disk drive, partitioning the usable disk surface on the disk drive into regions, and calculating a transfer rate based on the capacity goal and the usable disk space....http://www.google.com.tw/patents/US5537264?utm_source=gb-gplus-share專利 US5537264 - Method for optimally selecting media transfer rates for different data heads based on individual data head performance
