Duplication and Replication
What’s the difference between
Duplication and Replication?
© 2012 Audio Duplicating Service
CD / DVD
Disc Duplication - Duplication is the standard way quantities
of 1 - 500 CDs or DVDs are produced. The original disc is
placed in a reader which copies the data onto a hard drive.
The master is ejected and blank discs are loaded into the
system. Your data is burned (transferred) to the blank discs.
The information is verified and the copy is then accepted or
rejected. Because disc burn speed has increased greatly
over the years, it is now possible to duplicate large
quantities of CDs or DVDs in a very short time.
Replication - Replication is the method used to produce
mass quantities (over 1,000) of CDs or DVDs. A “glass
master” of your original is made which in turn “stamps” the
data onto blank media. The disc is then printed and
lacquered for protection. Replication generally takes a much
longer time than duplication because of the necessary
added steps which can add 7-14 days to complete. Another
factor is that a “clean room” environment must be
maintained for proper “Mastering”. The slightest piece of
lint, dirt, etc. can flaw the master, with the defect carried
over to the stamped copies.
Is There any Difference? - There is no difference in the
disc’s except for a slight compatibility issue between the
two processes. A replicated disc will work on all DVD
players and computer drives. A duplicated disc will work on
players that will read a DVD-R disc. Almost all modern set-
top players and computers can play this format. In short,
there is VERY LITTLE difference between a duplicated or
replicated disc. If you have menus, chapters, alternate
sound tracks, extras, etc. on your original, it will be on the
the new disc regardless of how it was copied. Most
companies are now using duplicated disc’s instead of
replicated ones because of the cost and time saved by this
process and the ever decreasing compatibility issue.
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