On Sat, 11 Sep 2010 00:45:13 -0500 "Tim Williams"
wrote in Message id: :

Honestly, some people believe Sharpie markers on the edges of CDs make a
difference. Actually, I forget if they're Sharpie specifically, or if it
only "works" with some other brand.

Must have something to do with not allowing the laser light to reflect out
the edge of the disc.