To provide an information recording medium whose protecting properties against forgery of an information area, e.g. a hologram seal or a mechanically recognizable hologram seal in a conventional information recording medium are improved.

A plurality of information areas 3a, 3b, etc., composed of a plurality of subareas 4 are all provided at positions of equal distances from the edge in a base 2. Thereby it is made possible to provide the information recording medium wherein the amount of recorded information is increased and which is easy to read mechanically. By giving uniqueness to the information areas 3a and 3b, a security function can be further improved.