On Thu, 24 May 2007 14:24:20 +0100, "Brownz @ Work"
wrote:

Don Pearce wrote:
On Wed, 23 May 2007 17:27:25 +0100, Steve Swift
wrote:

Test him, and see if he is right. Then, if you have something
concrete to report come back and there will be something to talk
about. Everything technical you have written above tells us no more
than that you don't know how CDs work.

I probably know more about how CD's work than 99.99% of the
population since my honours degree in Physics contained a generous
section on optics, my secondary subject, Electrical engineering
brought me into daily contact with electronics, my post-graduate
work in the Physics department at Birmingham University and the
Rutherford Laboratory in Oxfordshire included daily use of lasers.
I've owned CD players since 1982 (when the biggest problem was
finding a CD, let alone knowing how they worked).

But then what do I know? I'm just a Physicist with an electronics
hobby.

I simply don't believe you. Nobody who understands how CDs work would
have written what you did. Were you asleep in class?

Actually, now I read more closely what you have just written, none of
that would of itself give you any insight into how CDs work. Optics
doesn't do it, Electrics doesn't do it and lasers don't do it. Digital
signal processing and audio are the disciplines relevant to the case.

d

I think the op was looking for an excuse to wave his credentials in the air.
The opening statement "I probably know more......" did it for me.
Just the sort of bloke you'd love to meet down the pub.

Yup, I think you are right.

d

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Pearce Consulting
http://www.pearce.uk.com