The relationship between the compensated write power at {HEAD ~ each Pcn value} and evaluated value Smn is examined to determine the Pcn that maximizes {TAIL ~ the linearity} of the relationship between and Smn, as the optimum write power compensated value PcO 
The relationship between the compensated write power at { HEAD ~ each Pcn value } and evaluated value Smn is examined to determine the Pcn that maximizes { TAIL ~ the linearity } of the relationship between and Smn , as the optimum write power compensated value PcO
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH