Re: DuoDisk 5.25 bug (ctrl-oa-reset)

[cdeschu@nyx10.cs.du.edu (Chris Deschu)]

In article <CrHxEr.Is5@actrix.gen.nz>,
David Empson <dempson@actrix.gen.nz> wrote:
>In article <15JUN199402153411@vax2.concordia.ca>,
>Mitchell Spector <spector@vax2.concordia.ca> wrote:

(CUT)

>There was mention of this in the January 1986 issue of Open-Apple
>(later called A2-Central).  I quote:
>
>"Some Apple DuoDisks can erase disks by accident.  It happens during
>rebooting with open-apple-control-reset and with some copy protection
>schemes.  Drives that have the problem have serial numbers beginning
>with 676 and ending with either 101 or 102.  If you have such a drive,
>take it to your dealer for a free fix."

Hmm, I'll have to check mine out.

(CUT)

>In a later issue they mention that some DuoDisks have problems being
>used on the IIgs disk port unless a couple of resistors are removed,
>but this seems to be an unrelated problem.  It doesn't say which
>version of the board is affected.

Interesting. I have a DuoDisk on my ROM 1, and it has worked
flawlessly from the day I plugged it in. I haven't checked the
board number yet, though. Another one of my friends also uses
a duodisk on another ROM 1, and again, no problems. Anyone use
one on a ROM 3 yet? I wouldn't expect any difference.

-- 
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