Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!snorkelwacker!mintaka!ogicse!zephyr.ens.tek.com!gvgpsa!treehouse!andyp
From: andyp@treehouse.UUCP (Andy Peterman)
Newsgroups: comp.sys.mac.system
Subject: Re: Apple CD-Rom driver
Message-ID: <341@treehouse.UUCP>
Date: 10 Aug 90 05:56:51 GMT
References: <82901@hobbit.UUCP>
Distribution: usa
Organization: /etc/organization
Lines: 32

In article <82901@hobbit.UUCP> ndjc@ccicpg.UUCP (Nick Crossley) writes:
>                       ....... The drive I am borrowing is an early
>one (with fan, and thus probably with the dust problems).  However,
>I am having problems which I suspect might be something other than
>dust.  The drive only recognises certain CDs, and is not inconsistent
>about this; it always accepts some CDs and always rejects others.
>Amongst those it rejects are issues 1 and 3 of develop; it likes
>issue 2!
>
>So, I suspect there might be a hardware or software problem.  Does
>anyone know what the most up to date driver version numbers are?

I just had a similar problem.  I've reconnected the fan in it because
I'd leave a CD in it all day and with the fan disconnected, I felt the
CD just got too warm.  All of a sudden, it wouldn't read one CD (the
lastest Developers' CD).  This same CD read fine on another drive.
The funny thing is the new version of this CD still wouldn't work right
on my drive, while other CD's worked OK (well, not perfectly - some
would start acting flakey).

So I opened the drive and cleaned the lens (not recommended for the
faint hearted) and suddenly everything was fine again.  I've ended
up keeping the fan connected, but slowed it down (with a 200 ohm
resistor in series).  The fan now runs at a fraction of the speed,
you can't hear it at all, and I figure that it will take MUCH longer
to collect dust.  The funny thing is I can now keep a CD in it all
day and it stays cool!  This is probably what Apple should have done
in the first place.  I feel that there should be SOME air moving
through the drive - there's just too much heat built up otherwise.

	Andy Peterman
	treehouse!andyp@gvgpsa.gvg.tek.com