The method of duplication CDs is often referred to as a small-scale production method. This method is used only when pre-prepared CD-R discs are already available. The disk recording in professional companies that provide bulk cd duplication service is made on special duplicating equipment, which is called "duplicators". The next step after the duplication is to decorate CDs using industrial printing methods. The method of duplication is an ideal variant for the number of copies starting from 1 CD.