Record carrier with an optically readable radiation-reflecting information structure

An improved record carrier in which information is stored in a radiation-reflecting information structure at least one side of which is readable with an optical radiation beam and which comprises information areas arranged in tracks which areas, in the track direction and transverse to the track direction, are spaced from each other by intermediate areas, the surfaces of the information areas being disposed substantially in a first plane, the surface of the intermediate areas substantially in a second plane, and the distance between the first and the second plane being substantially constant over the entire record carrier, the improvement being charcterized in that the angle of inclination between the walls of the information areas and a normal to the record carrier has one value between 30.degree. and 65.degree., and the geometric distance between the first and the second plane has one value between 165/N and 270/N nanometers, N being the refractive index of a transparent medium which is disposed between the first and the second plane on the optically readable side of the information structure.