A secure optical data disc comprising an electronic article surveillance
tag embedded within a layered disc structure comprising first and second
substrates is disclosed. The tag is placed within a non-readable zone
(i.e., one that does not have data tracks) of the secure disc.
Layer-wise, the tag is either sandwiched between the two substrates or
alternatively embedded within one of the two substrates. In the case
where the tag is sandwiched between first and second substrates, a
bonding layer occupies a space radially outward from the tag.. The
bonding layer holds the first and second substrates together thereby
forming the secure disc.