A disc duplicator is a system that only copies discs. It works like a photocopier - you supply it with an original (your master) and it outputs copies at high speed. A disc publishing system encompasses more. It connects to your computer and incorporates a printer as well as one or more drives to burn your CD-R or DVD-R media. Publishing systems are designed to output finished discs from files on a hard drive or network. In addition - fully automated, configurable systems are available that allow you to output hundreds of finished discs from content on your hard drive with just a few simple mouse clicks.