A magnetic recording medium 2, wherein {HEAD ~ said magnetic recording medium} records and reproduces {TAIL ~ signals} in the range of the wavelength of 1 μm or shorter 
A magnetic recording medium 2 , wherein { HEAD ~ said magnetic recording medium } records and reproduces { TAIL ~ signals } in the range of the wavelength of 1 μm or shorter
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH