Subject: From: Date:

RE: [ecs] cd damage question Reynolds,Martin Tue, 6 Jan 2004 09:43:57 -0800

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 Tue, 6 Jan 2004 09:43:57 -0800
The top side is where the data is. Everything down from there is just
filler. 

When a CD is manufactured, the data is stamped into pits on the top
surface, which then receives the reflective coat, topped by labels and
lacquer. So if you scratch the top, the data is gone. Scratches on the
bottom, however, can be polished out with toothpaste.

As Dario notes, you might find that the lost data is not part of the
recording. Most $15 CDs are only half full.

-----Original Message-----
From: Dario Greggio [mailto:adpm.to@inwind.it] 
Sent: Tuesday, January 06, 2004 6:19 AM
To: ecs@netbloc.com
Subject: Re: [ecs] cd damage question

Mark Gilmore wrote:

> I scratched a CD on the *top* side, such that it removed the
reflective 
> coating (you can see thru it).
> Will it still play OK ?
> Seems to, but I haven't listened to the whole thing.

It should not, but only if the scratched zone was used. CD begin in the 
center and expand outwards. If it was not filled up, it may be ok. DO 
immediately a copy!!

-- 
Ciao, Dario

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