A hologram recorder/player includes recording beam modulation controller which causes a spatial light modulator to modulate the recording beam in such a way that a hologram is recorded in a plurality of blocks in a unit recording region and that each of the blocks includes recording information (DATA) and error correction code, at a time of recording. The hologram recorder/player includes incident angle variable controller which varies a reference beam incident angle to a plurality of predetermined angles with respect to the unit recording region. The recording beam modulation controller causes the modulation of the recording beam in such a way that a different hologram is generated for a page each time the reference beam incident angle is varied and that the hologram in each page is recorded in a plurality of the blocks.