Re: Experience w/ 4.6GB MO drive???

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#249

From: Mike Pelletier
Date: Tue, 14 Nov 1995 00:00

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In article <47s9ou$m53@shellx.best.com>, Mike Iimura <miimura@best.com> wrote:
>
>So what are you saying??  Do you have to flip the cartridge to read the
>rest of the disc??
>
>- Mike Iimura
>  miimura@best.com

That's correct -- that's how all MO drives operate as far as I know.  A 
1.3GB MO is two 650MB sides.

The problem lies in the way MO is written, or so I've been told -- a
higher-intensity laser beam actually heats up a small section of the disk
making its crystal structure somewhat malleable.  Then a second, lower
intensity laser, in the presence of a changing magnetic field, changes the
optical polarization of the medium before it cools.  When it cools, the
polarization can be read by a low-intensity laser beam.  Apparently 
writing and reading both sides of the disk either isn't possible or is 
too technically challenging to be practical yet, due to this method of data 
transfer.

	-Mike Pelletier.

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From: Mike Pelletier <mpelletier@ofgw.ntt.com>
Subject: Re: Experience w/ 4.6GB MO drive???
Date: 1995/11/14
Message-ID: <48a7qm$s20@conch.aa.msen.com>
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sender: ntt@msen.com
references: <47bilq$1mim@news.doit.wisc.edu> <47npis$a2g@conch.aa.msen.com>
organization: Msen, Inc. -- Ann Arbor, MI
newsgroups: comp.sys.mac.hardware.storage,comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.cd-rom,comp.publish.cdrom.hardware,comp.sys.sgi.hardware,biz.comp.hardware,comp.unix.admin,comp.sys.sgi.admin

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