An optically detectable information recording medium is at least comprised of a substrate and a recording layer, wherein a surface of the recording layer opposite to another surface of the recording layer in contact with the substrate has a Root Mean Square roughness R.sigma. of less than 5 nm, and wherein the recording layer has dye recording material selected from cyanine dye, phthalocyanine dye, naphtalocyanine dye, azo dye, naphtoquinone dye, fulgide dye, polymethyne dye, and acridine dye.