Re: tlug: CD-R reliability

[Scott Stone <sstone@example.com>]

On Mon, 3 Aug 1998, Masanori Smiley Omote wrote:

> Hi,
> 
> Scott:
> > Well, CDs are vulnerable to extreme temperatures and (obviously)
> > scratching... it might have gotten too hot in the plane over to Japan, or
> > too cold (from Germany to Tokyo, the plane would fly great-circle over
> > Siberia, right?).  CDs are vulnerable to cold, as well.  possibly the
> > expansion/contraction of the media under the temperature differential
> > caused very small cracks in the media that are causing the errors?
> 
> I don't think so.  I'm not sure but all the packages seem to be kept
> in the usual temperture in the plane, although outside is -50C at
> 10000 ft. high.  I have got some CD-Rs from U.S. or Germany via rush
> (air) and they were completely okay.  They were all in jewel case.  I
> think thin plastic folder would be okay if the overall packing is
> completely robust for shock.

1.  Cargo compartments are neither pressurized nor heated (except for the
place where they put your pets).

2.  Planes fly at about 30,000 feet, not 10,000 feet.  Sometimes higher.

What make of CDR were the ones that you got via rush air?

> 
> But actually CDs are physically vulnerable.  In that point, I think
> Scott is right.
> 
> --
> Masanori "Smiley/Smack" Omote
> masa@example.com
> www.omote.com
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--------------------------------------------------
Scott M. Stone <sstone@example.com, sstone@example.com>
               <sstone@example.com>
Head of TurboLinux Development/Systems Administrator
Pacific HiTech, Inc (USA) / Pacific HiTech, KK (Japan)
http://www.pht.com		http://armadillo.pht.co.jp
http://www.pht.co.jp	        http://www.turbolinux.com


--------------------------------------------------------------
Next Meeting: 8 August, Tokyo Station Yaesu central gate 12:30
featuring Linux on multiple platforms:
i386, Sparc, PA-Risc, Amiga, SGI, Alpha, PalmPilot, ...
Next Nomikai: 18 September, 19:30 Tengu TokyoEkiMae 03-3275-3691
--------------------------------------------------------------
Sponsor: PHT, makers of TurboLinux http://www.pht.co.jp