In message , "J. P. Gilliver (John)"
writes:
[]
I wonder if my idea of a spray-on coating - for the labelling side, to
avoid any doubt - has any legs! The chemical could be made _more_
sensitive than lightscribe discs, if it was a two-part process
involving a "fixing" spray to be applied afterwards (either to block
the relevant wavelength, or to stop further change in the chemical, as
in photographic fixers. [Or both.])
[]
I've just had a further thought, though: did LightScribe discs have at
least some tracking info on the label side? I'd always assumed their
only difference to non-LightScribe discs was some extra chemical on the
label side. But I got to wondering how the tracking mechanism was
persuaded to work. If it could be constrained to work in dead-reckoning
mode without feedback - after all, the precision required is at least an
order of magnitude less than that required for the data side - then my
idea could work; if the LightScribe software still needed something to
latch onto, then probably not. (And might explain why "pirate"
LightScribe blanks didn't appear, as well.)
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

If it ain't broke, fix it 'til it is.