5 May
2010
5 May
'10
10:33 a.m.
On Sunday 25 April 2010 01:34:12 Fons Adriaensen wrote:
Writeable CDs don't have pits, either the color or
the
reflectivity of the surface is modified by heating it.
Both require the laser power to be controlled in function
of write speed.
Afaik writeable CDs _do_ use pits. They are created when the laser heats up
the colour-bubbles so they expand and raise the reflective layer.
Disclaimer: I've been found wrong in the past...
Arnold