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Duplication versus Replication for CD and DVD: What's the Difference?

There are two ways to make a copy of a CD a CD-R master. While a DVD-R is
or DVD. Information can be burned on to acceptable for DVD replication, most
a blank CD/DVD-R; this method is called facilities prefer to work from a client
duplication. Information can also added supplied DLT or Digital Linear Tape.
during the CD/DVD manufacturing process; Advantages of CD/DVD Duplication
this method is referred to as
replication. 1. The standard turn-time is 2-3
Understanding the differences is business days, even for runs up to 5,000
important in determining which process is units.
best for your project. A duplicated CD 2. Digital full color printing is
DVD is not only created using a different available with no prepress charges.
process than a replicated CD/DVD, but the Disadvantages of CD/DVD Duplication
actual final product is also different. 1. The cost per unit for duplication is
After the duplication process is higher than replication.
complete, the final product is a CD-R or 2. DVDs can have up to 2 layers of
a DVD-R. Replication stampers for CDs information on each side of the media.
produce CD-ROMs. (ROM means Read Only DVD-R duplicates can have 1 layer of
Memory). The final product in the DVD information on the entire DVD.
replication process is a DVD-5, DVD-9, 3. Most duplication facilities are small
DVD-10, or DVD-18. and are commonly limited to hand
The Processes assembly of the media into packaging as a
CD duplication is similar to burning a CD result of their low volume runs
DVD on your personal computer. A CD/DVD Advantages of CD/DVD Replication
duplicator extracts data from the master 1. The unit costs are lower than
disc and writes it to a blank disc. The duplicated discs.
difference between burning multiple CD 2. Both offset printing and screen
DVD-Rs at a duplication facility and printing is available for replicated
burning one on your computer desktop is discs.
that the duplication facility burns 3. Replicated DVDs can contain 1 layer
hundreds at a time on towers that are (DVD-5) of information, 2 layers on one
linked together. Each tower contains side (DVD-9), 1 layer on each side
several CD/DVD trays so that many copies (DVD-10) or 2 layers on each side
can be created simultaneously. After (DVD-18). Many replication facilities
all the data has been written unto the are not yet set up for DVD-18
blank CD/DVD-R, the information is replication.
verified with the master, and the process 4. Most replication facilities, as a
is complete. result of their high volume run
CD/DVD replicates, on the other hand, are capability, can auto assemble discs into
created during the manufacturing process. jewel cases, paper/tyvek sleeves, amaray
In other words, media like a CD/DVD-R cases, or cardboard sleeves.
does not exist before the process starts. Disadvantages of CD/DVD Replication
Before the replication process gets
underway, the client master is 1. The standard turn-time is 7-10
painstakingly evaluated for data business days, longer for runs exceeding
corruption. Then, a glass master 100,000 units. Standard duplication turn
containing relevant data from client times are 2-3 business days.
supplied master is created. Replication 2. Most facilities have a minimum order
begins when a flawless glass master is requirement of 1,000 units.
assured. The glass master is used to Are There Noticeable Differences?
develop a stamper. The stamper, in turn, Both CD duplication and CD replication
is loaded into an Injection Molding extract data from the original in the
machine that creates CD/DVD replicates. same way. In terms of manufacturing,
The quality of CD replication hinges upon however, this is where the similarities
the quality of the glass master's data. end. The finished product of either
Through each successive step, quality and process performs in the same manner,
accuracy is consistently monitored to although there will be difference to the
insure each disc is an exact replica or eye depending upon the whether the discs
clone of the original. A layer of are digitally, screened, or offset
micro-thin aluminum is applied to the printed.
polycarbonate disc. It is then lacquered What About Special Circumstances?
for additional protection and printed The goals of every project are unique.
before packaging. Contact our customer service department
The client supplied master for CD-R and to help determine which process best
DVD-R duplication is the same, a CD suits the requirements of your project.
DVD-R. CD-ROM replication also requires




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