Recording media having {HEAD ~ protective overcoats} of {TAIL ~ highly tetrahedral amorphous carbon} and methods for their production 
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Recording media having { HEAD ~ protective overcoats } of { TAIL ~ highly tetrahedral amorphous carbon } and methods for their production
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH