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From: mrgofor@mmm.UUCP (Michael Ross)
Newsgroups: net.micro.mac
Subject: Re: HFS compatability and Software backup - Simple solutions
Message-ID: <425@mmm.UUCP>
Date: Mon, 27-Jan-86 15:48:06 EST
Article-I.D.: mmm.425
Posted: Mon Jan 27 15:48:06 1986
Date-Received: Wed, 29-Jan-86 04:30:39 EST
References: <1636@Shasta.ARPA> <348@ccivax.UUCP> <1667@Shasta.ARPA> <45@gumby.UUCP>
Reply-To: mrgofor@mmm.UUCP (Michael Ross)
Distribution: net
Organization: 3M Company, St. Paul, Minn.
Lines: 17

In article <45@gumby.UUCP> hammen@gumby.UUCP writes:
>
>The way the protection works is if a sensor sees the little red light shine
>through the hole of a locked disk, nothing gets written to the disk.  
>However, I've been told that it is possible to instruct the IWM to turn off
>the light, thereby making the disk writeable....
>						Robert J. Hammen
>						Manta Software Corp.
>						U of Wisc. CS Dept.
>						hammen@gumby.uucp

Then how come my Sony disks work? The write-protect mechanism on those
diskettes doesn't include a hole going through the diskette - there is a 
small tab that can be moved back and forth, but you can't see through the
diskette in either mode.

	--MKR