The invention provides an optical information recording medium comprising
a substrate, an optional reflective layer, a recording layer, a barrier
layer, an adhesive layer, and a cover layer in this order. In the first
embodiment, the barrier layer covers the surface and the outer and/or
inner peripheral end edge surfaces of the recording layer, the inner
and/or outer peripheral portions of the substrate and the cover layer
adheres to each other in at least partial region thereof via the adhesive
layer, and the maximum length of this region in the radial direction is
0.4 mm or more. In the second embodiment, outer and/or inner peripheral
end edge portions of the reflective layer extend past the corresponding
peripheral end edge portion or portions of the recording layer, and the
barrier layer adheres to the reflective layer's extended peripheral edge
region.