The Z1 looks like a very slick unit to me. Good price, good PC mag review, and small footprint. Unless you're looking at large volume, this seems to be an option that would produce very professional looking results. I would obtain one with a liberal return option and make sure this one user's cons are not viable.

One user's review:

"I've used my Z1 for about 2 dozen disks so far. PROS: 1. Software easy to use. 2. Allows curved printing on two of the four print areas CONS: 1. Doesn't print clearly on typical silver disks with grainy, rough texture on the label side, especially if you are trying to print the song list for a full music CD in a small font. 2. Doesn't help you line up your text with the manufacturer's printing on the disk. 3. Disks hard to remove from unit after printing. 4. Hard to find plain white disks"