Today in memory storage systems, the Digital versatile discs (DVD) and Compact discs (CD) are the top most used between the people for storing their files and important applications, movies, etc, whatever they want. And the DVD’s and cd’s have the great part in media field especially in video distribution. They are very much used by software companies for distributing the software’s as same as the master copy all over the world. For this type of distribution, a process called Replication is used.The Replication of DVD or CD is the process of manufacturing or pressing of a disc from its master copy such as cloning. It is not the duplication processes like copying or burning the DVD or CD from one to more copies. This is the main difference between replication and duplication process. The replication process is done by using a glass master. It is nothing but the copy of the original master used to replicate. After the glass master is made Stampers are used to press out the disc using molding machines. After verification, the discs will be printed.The replication of DVDs and CDs are very useful in the production of error free discs. This process is very much useful for media and Software companies to satisfy their customers with their high quality of disc as it appears as their master copy. There is no need of compromising with quality. The DVD and CD replication produces a reliable and durable disc than any other. It is cost effective also.