Courtesy of a google search found http://www.eciusa.com/cdr/techdic.htm

"The track pitch specification for a CD is 1.6=B10.1 microns."

I, for one, wouldn't mind seeing an illustration of this film-can
spectrum gadget you built.

Barry


>9. Question: What is the pitch of the tracks on a normal CD ? I am unable
>to find this information (it is of about 2 um but how much exactly?).

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.