What is the advantage of buying a CD Duplicator with a hard drive as opposed to buying a duplicator without a hard drive?
When you are continuously making a copy of the same master, loadng it onto the hard drive enables you to use that image for making copies without reloading the master each time. The hard drive also allows you to make compilations of multiple masters. You can do track extraction which allows you to pick and choose what you want off of your CD and in what order.