INFORMATION RECORDING MEDIUM AND INFORMATION REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To mass-produce a recording medium having sufficient recording capacity at a low cost. SOLUTION: A plurality of grooves 20 are arranged as a two-dimensional pattern according to the information to be recorded in an information recording part 10, and a fluorescent layer packed with a fluorescent material is disposed on the pattern. When the information is to be reproduced, the fluorescent pattern generated by the reproducing light irradiating the information recording part 10 is detected.