You can easily to print CD cover by using Inkscape.
- File > New > CD Cover.
- Draw a circle with 340x340pt.
- Import the image you want to print into circle shape.
- Choose image and circle.
- Menu > Object > Clip > Set.
Of course that is much more easier for you to print out on a A4 paper and draw a circle with your CD then cut the paper by following the circle line.