Path: utzoo!mnetor!uunet!husc6!bbn!lawrence
From: lawrence@bbn.COM (Gabe Lawrence)
Newsgroups: comp.ivideodisc
Subject: Re: CD-ROM
Message-ID: <5826@ccv.bbn.COM>
Date: 6 Jan 88 20:42:14 GMT
References: <19898@teknowledge-vaxc.ARPA> <4469@watdragon.waterloo.edu> <2132@bloom-beacon.MIT.EDU>
Reply-To: lawrence@BBN.COM (Gabe Lawrence)
Organization: Bolt Beranek and Newman Inc., Cambridge MA
Lines: 28

yba@athena.mit.edu (Mark H Levine) writes:
>
>This seems unnecessarily pessimistic on several counts:
>
>Music CDs which use the same basic technology + a D/A converter come double
>sided, CD-ROM drives can mechanically accomodate these disks as far as I have

Funny... I own a couple of hundred music CDs and not one of them is 
double-sided. 

>seen (they use the same bloody drive in the case of Hitachi product I was
>shown, and the only restriction on WORM product was the form factors involved).
>The labelling problem is somewaht silly -- two-sided music cds have labels on
>both sides, as do 8, 10, and 12 inch optical disks for video (with 2 sides).
>The lasers do not seem to have any trouble with the plastic coat, nor would
>I expect any.
>...

Sorry, I've never seen a music CD, or video disc for that matter although
I'm not as sure, that was labelled on both sides.  The lasers might
be able to read through surface dust or fingerprints but through completely
opaque enamal labelling paints??  C'mon, let's be realistic!!

Call me "Pessimistic in Cambridge",
				       =Gabriel Lawrence=

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