The major objective of this article is to know about process of cd duplication. CD Duplication is the progression of assembly data objects into its necessary layout and then recording it onto a visual device. This progression is also usually recognized as ‘burning’ or ‘optical disk authoring. The period of the CD Duplication process is recording the entire image file onto the CD. This is anywhere the information controlled in the solitary image file that has been produced is placed onto the optical disk in a layout that is necessary by the device that is to finally read the disk and remove the information at a presently date.