Re: [ARSCLIST] Can 78s sound better than LPs?

[Jerome Hartke <jhartke@xxxxxxxxxxxx>]

> there will be friction which in turn generates "noise." OTOH, photons
> bouncing off of CD surfaces apparently don't generate any (audible?)
> noise. One wonders, though, if these photons can, in theory, knock
> molecules from the plastic surfaces (in which case, CD's might show
> wear after a gazillion or so plays...?). The problem is, though, that
> as each reduction in the physical size of the "stored information"
> took place, the amount of damage needed to render the "record"
> unplayable also became closer to invisibility!

Not possible. First, visible light quanta contain much less energy than the
binding energy of a molecule, and cannot separate it from the disc. Second,
CD and DVD data is not at the air/polycarbonate surface, but is buried
within the disc.

Jerry
Media Sciences, Inc.