An authenticable optical disc and a system and method for authenticating
the optical disc are provided. The optical disc comprising a reflective
layer; an optically transparent substrate disposed between the reflective
layer and a light incident surface of the optical disc; a data layer
disposed between the substrate and the reflective layer, the data layer
including a predetermined signature; and at least one measurable feature,
wherein the at least one feature is compared to the predetermined
signature for authenticating the optical disc. The method comprises the
steps of preparing an optical disc with at least one optical feature;
measuring intensity of transmitted light from the at least one optical
feature; and comparing the measured intensity to a predetermined
signature, wherein if the measured intensity and predetermined signature
matches, access to the optical disc is granted.