A package includes a thermoformed web or support member, an optical data
storage medium disposed in a cavity of the thermoformed web, or on the
support member; and a covering web disposed on the optical data storage
medium, and on the thermoformed web or support member, and in sealing
relationship to the thermoformed web or support member; where each of the
thermoformed web or support member, and the covering web, includes an
oxygen barrier; and where at least one of the thermoformed web or support
member, and the covering web, includes an oxygen scavenger. Methods of
making the package are also disclosed. In addition to, or alternatively
to including the oxygen scavenger in at least one of the thermoformed or
support member, and the covering web, the oxygen scavenger can be
disposed on the optical medium, e.g. in the form of a disc, coating,
label, pellet, wafer, or flattened sachet.