A disk-shaped optical information recording medium comprising a recording layer,
a barrier layer, a pressure sensitive adhesive layer or an adhesive layer, and
a cover sheet in this order on a substrate, and having a central hole, a track
pitch of 300 to 600 nm and a groove depth of 40 to 150 nm, for recording and playing
back information by being irradiated with a laser light at a wavelength of 500
nm or less, wherein the substrate and the barrier layer are closely adhered via
the pressure sensitive adhesive layer or the adhesive layer at a region including
a portion of an inner circumference vicinity and an outer circumference vicinity,
and the maximum value for the radial length of the closer adhesion region is at
least 0.4 mm.