The surface side reproduction type optical recording medium 4, wherein {HEAD ~ the refractive index} of {TAIL ~ the dielectric layer} decreases stepwisely or continuously toward the medium surface 
of
The surface side reproduction type optical recording medium 4 , wherein { HEAD ~ the refractive index } of { TAIL ~ the dielectric layer } decreases stepwisely or continuously toward the medium surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH