Replication (optical media)

In optical disc manufacturing, replication is the process of producing discs via methods that do not involve "burning" blank CD, DVD or other discs; the latter is known as duplication.

The replication of optical discs involves:
 * 1) the creation of a glass master from a client original master.
 * 2) the creation of a nickel stamper from that glass master.
 * 3) the injection molding of clear optical-grade polycarbonate substrates (clear discs) from that stamper.
 * 4) the metallizing and lacquering of those substrates to produce compact discs and DVDs.