The optical information recording medium 1, wherein {HEAD ~ the maximum length} of the partial region of the outer peripheral portions in {TAIL ~ the radial direction} is 0.4 to 2 mm 
The optical information recording medium 1 , wherein { HEAD ~ the maximum length } of the partial region of the outer peripheral portions in { TAIL ~ the radial direction } is 0.4 to 2 mm
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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH