I hate CD printing terminology. It's so bloody counter intuitive. Here's the definitions from the Discmakers website.

CD Replication includes the creation of a glass master from a client's original master, a nickel stamper created from that glass master, and the injection molding of clear optical-grade polycarbonate substrates (clear discs) from the nickel stamper. The process also involves the metallizing and lacquering of those polycarbonate substrates to produce a perfect copy – an exact replication of your CD or DVD disc. CD replication is quick and cost-effective, especially for larger quantities. For disc quantities over 500, we recommend CD replication.

CD Duplication is an affordable option for customers looking to make a small run of discs (even as few as one). A recordable disc (CD-R, DVD-R or BD-R) is “burned” with your content directly onto our top-quality blank media. One possible drawback is infrequently reported problems of burned discs being incompatible with older car CD players. For disc quantities of 1-300, we recommend disc duplication.

My pet peeve comes from ordering CD Duplication. When you order it, you basically get a CD-R. While yes, that stands for Recordable CD, why didn't someone get smart and reverse the two, double using the R. A CD-R could've been both a “recordable CD” and “CD Replication”. Thus, my pet peeve.

When I order CDs, I almost always want the glass master, the CD-R… I mean CD Replication. (see my issue?) The only way to figure that out though is to make sure I order large quantities. It is cheaper ordering CD Replication in large quantities.

I don't know which came first, the CD-Rs that I used to burn on my computer all the time or this CD Duplication stuff, but it's stupid and bugs me!