CD/DVD duplication is the process of making few copies of CDs or DVDs. This process includes many steps and its only purpose is to make several copies of CDs/DVDs. It is perfect for smaller orders, as this process is used only when the quantity is under 500 copies.
The process of CD duplication allows the user to have a good quality copy. The copies delivered are of great quality which almost matches to the original. The duplicated CD/DVD seems to be same as the original even the quality of the sound is properly maintained.
Many people opt for the CD duplication because the price of duplicating a CD is much lower than replication. The replication procedure is expensive when the number of copies is lower. If your demand is not high then the CD duplication is an ideal option.
To conclude, it would be safe to say that the CD replication and CD duplication are the processes which provide a similar service, but the procedure involved in both of them is different. If you want a large quantity of CDs, then go for CD replication and in other cases opt for CD duplication. Thus, it is all about your requirements and you can choose the service accordingly.