OPTICAL INFORMATION RECORDING MEDIUM AND PROCESS FOR PRODUCING THE SAME

摘要

An optical information recording medium that while having multiple information layers, realizes stable recording and regeneration in all the information layers, and that is capable of maintaining the recording sensitivity of the layer disposed backmost when viewed from the laser incident side at a high level; and a process for producing the same. There is provided an optical information recording medium comprising a substrate and, sequentially superimposed thereon, a first information layer, an interlayer and a second information layer, characterized in that both the information layers have a recording layer constituted of a material containing Te, O and M (M is one or two or more elements selected from among Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Hf, Ta, W, Re, Os, Ir, Pt, Au and Bi), and that the content of material M in the second information layer is greater than that in the first information layer.