A common trick in Epson printers to use less ink is to fake the paper type like say the paper type is "Plain" or "Heavyweight Matte" when you actually printing on a CD. I would also suggest actually waiting 24 hours- you will be suprised how much dryer the ink will get. I believe the R300 is a pigment-based inkjet printer so it does not dry as fast as a dye-based- but when it does the ink will be on much more permanetly.