As a result, the initial or reference map of {TAIL ~ media density} stored in {HEAD ~ the memory} 50 is a two dimensional map, rather than the one dimensional map A of FIG 4 
As a result , the initial or reference map of { TAIL ~ media density } stored in { HEAD ~ the memory } 50 is a two dimensional map , rather than the one dimensional map A of FIG 4
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH