Search Method

A search method for a recording medium having a hologram recording layer in which a plurality of holograms are recorded and an address layer in which address information is recorded, wherein:

• a search light is generated from a search condition;
• the search light is irradiated onto a hologram recorded in the hologram recording layer;
• and
• when the search light interferes with the hologram and a reproduction light is generated, address information of the hologram from which the reproduction light is generated is identified using an address light that reads the address information and the identified address information is recorded, and when the search light does not generate the reproduction light from the hologram, the search light is irradiated onto another hologram recorded in the hologram recording layer.