disclosed are a holographic memory medium for use in a holographic memory system , which can prevent generation of stray light of a gating beam at the time of recording information , and a recording apparatus which uses this memory medium . this memory medium records an information signal carried by a signal beam as a coherent reference beam and the signal beam enter the memory medium with a gating beam being present . the memory medium has at least a first surface and a second surface parallel to each other and comprises an antireflection coat , formed on the first surface , for preventing reflection of the gating beam . the recording apparatus records an information signal using a holographic memory medium and comprises a light absorbing member of absorbing the gating beam coming through the memory medium .