18 Oct
2005
18 Oct
'05
4:32 p.m.
On Oct 18 2005, 8:29, John Foust wrote:
At 01:39 PM 10/17/2005, Bob Bradlee wrote:
>With the aid of a paperclip and a prybar, I opened
up the drive to
fine a
>shattered CD inside.
But I've seen this happen *twice* to a client who
wasn't
dunking them in LOX. CDs are spinning quite quickly.
I've never actually seen it happen, but a couple of years ago one of
the manufacturers who supplies the University issued a warning about
fast drives, and IIRC some were recalled. The explanation was that the
faster "52x" drives run at a speed which is very close to that at which
centrifugal force can make a polycarbonate disk break up, so a defect
in the disk can have a profound effect.
--
Pete Peter Turnbull
Network Manager
University of York
19 Oct
19 Oct
7:49 p.m.
On Tue, 18 Oct 2005 21:32:27 +0100 (BST)
Pete Turnbull <pete at dunnington.plus.com> wrote:
On Oct 18 2005, 8:29, John Foust wrote:
Back when I experienced my first 'high speed' CDROM drive, which was on my
new work computer, I heard the humming as the CD spun up and thought 'hmmm.'
Then I started adding progressively more scotch tape to a spot on a CD to throw it off
balance and investigate the noise level produced.
Then I got brave (and stupid) and scotch taped a little metal washer on the disk.
The CD drive buzzed so loudly that I had to quickly yank the power cord on my computer to
keep people from wondering what the HELL I was doing in my cubicle and investigate. I had
to paperclip open the drive (the paper clip is called the Mac-in-tool in my personal
folklore, because it's a tool no Mac user could live without, even for the floppy
drive) to get out the CD. It wasn't a 52x drive, just the first drive I encountered
greater than 4x.
At 01:39 PM 10/17/2005, Bob Bradlee wrote:
>With the aid of a paperclip and a prybar, I
opened up the drive to
fine a
>shattered CD inside.
But I've seen this happen *twice* to a client
who wasn't
dunking them in LOX. CDs are spinning quite quickly.
I've never actually seen it happen, but a couple of years ago one of
the manufacturers who supplies the University issued a warning about
fast drives, and IIRC some were recalled. The explanation was that the
faster "52x" drives run at a speed which is very close to that at which
centrifugal force can make a polycarbonate disk break up, so a defect
in the disk can have a profound effect.
20 Oct
20 Oct
10:54 a.m.
>>>> "Scott" == Scott Stevens
<chenmel at earthlink.net> writes:
Scott> Back when I experienced my first 'high speed' CDROM drive,
Scott> which was on my new work computer, I heard the humming as the
Scott> CD spun up and thought 'hmmm.'
Scott> Then I started adding progressively more scotch tape to a spot
Scott> on a CD to throw it off balance and investigate the noise
Scott> level produced.
I ran into that when I loaded a CD with a stick-on label.
That's when I discovered that *everyone* except the manufacturers of
that junk says that you should NOT put labels on CDs. And I no longer
do; if I get one I peel it off.
paul
11 a.m.
Paul Koning wrote:
I was able to get a CD unbalanced by putting too much ink on it from a
Sharpie. It didn't come apart, it just made a lot of noise.
Peace... Sridhar
>>>>"Scott" == Scott Stevens <chenmel at earthlink.net>
writes:
Scott> Back when I experienced my first 'high speed' CDROM drive,
Scott> which was on my new work computer, I heard the humming as the
Scott> CD spun up and thought 'hmmm.'
Scott> Then I started adding progressively more scotch tape to a spot
Scott> on a CD to throw it off balance and investigate the noise
Scott> level produced.
I ran into that when I loaded a CD with a stick-on label.
That's when I discovered that *everyone* except the manufacturers of
that junk says that you should NOT put labels on CDs. And I no longer
do; if I get one I peel it off. 
2:41 p.m.
----- Original Message -----
From: "Sridhar Ayengar" <ploopster at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Thursday, October 20, 2005 11:00 AM
Subject: Re: A BDU's is born every minute ...
I was able to get a CD unbalanced by putting too much ink on it from a
Sharpie. It didn't come apart, it just made a lot of noise.
Peace... Sridhar
That's funny, I have yet to have issues with stability using CD labels on
CDR recorded media even on my 52x drive. Most of my CDs have stick-it-right
or cheapo IBM labels applied with a NEATO applicator device.
The stick-it-right labels cannot be removed without destroying the CD, and
are very good at keeping the data layer from getting scratched, too bad you
can't really find them anymore except online (or maybe not even there since
I have not looked for them in years).
12:41 p.m.
Paul Koning wrote:
I ran into that when I loaded a CD with a stick-on
label.
That's when I discovered that *everyone* except the manufacturers of
that junk says that you should NOT put labels on CDs. And I no longer
do; if I get one I peel it off.
Just be careful that you don't pull off the aluminum layer
that it is stuck to, or you won't be able to read it.
Maybe a better option would be to add a similiar sized label
180 degress from the original to balance it out.
1 p.m.
>>>> "Kevin" == Kevin Handy
<kth at srv.net> writes:
Kevin> Paul Koning wrote:
> I ran into that when I loaded a CD with a stick-on
label.
>
> That's when I discovered that *everyone* except the manufacturers
> of that junk says that you should NOT put labels on CDs. And I no
> longer do; if I get one I peel it off.
>
>
Kevin> Just be careful that you don't pull off the aluminum layer
Kevin> that it is stuck to, or you won't be able to read it.
Kevin> Maybe a better option would be to add a similiar sized label
Kevin> 180 degress from the original to balance it out.
I'm talking about the Neato [sic] labels, which are round and pretend
to be balanced. Not.
paul
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chenmel＠earthlink.net -
kth＠srv.net -
pete＠dunnington.plus.com -
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