In {TAIL ~ addition}, the present invention disclosed another method of reading data on {HEAD ~ a disk drive} 
In { TAIL ~ addition } , the present invention disclosed another method of reading data on { HEAD ~ a disk drive }
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD