'I cannot imagine how using a Sharpie would damage or cause problems on a CD-R.' Contrary to what you might expect, the layer of the CD that carries the data is on the 'top' of the disk, right under the printed/laquered/coated/whatever layer. The wrong solvent could, I have been told, pass through and affect the data layer or cause de-lamination. Printable disks have a thicker layer and can be written on with a soft pencil or water based marker if you don't want to print them - but don't press hard! I had a great program that came with my Canon printer that made printing CDs dead easy - then I got Windows 7 (Grrr!) and Canon have no timescale for updating the software to make it work again. Martin
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