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From: kg@amdahl.UUCP (Ken Greer)
Newsgroups: net.audio
Subject: Re: Why is only one side of a compact disk used?
Message-ID: <1470@amdahl.UUCP>
Date: Tue, 30-Apr-85 14:41:44 EDT
Article-I.D.: amdahl.1470
Posted: Tue Apr 30 14:41:44 1985
Date-Received: Wed, 1-May-85 17:06:38 EDT
References: <106@daisy.UUCP> <127@bocar.UUCP>
Distribution: na
Organization: Amdahl Corp, Sunnyvale CA
Lines: 13

> 
> The reason only one side of the compact disk is used is because
> the laser reads from the bottom of the disk and the image of the
> 'pit or valley' is reflected off the disk.  If both sides were
> 'reflectable', the laser couldn't read either side.

Then how come my Laser video disk player reads both sides?
I think the real reason is to improve the yield.
-- 
"I'd rather be rolfing"

Ken Greer
{amdahl,hplabs}!elan!kg