Optical information recording medium, method of manufacturing the same, and recording method on the same

摘要

An optical information recording medium includes a substrate (1), and a record layer (2) formed on the substrate (1). Information is recorded using a laser beam with a wavelength of 380 nm to 430 nm, and refraction index n and attenuation coefficient k of the record layer satisfy a relation of 3.9 < n < 5.6 and k > 0.4 to the wavelength of 380 to 430 nm.