Path: utzoo!attcan!uunet!cs.utexas.edu!yale!umich!bushido!jamesb
From: jamesb@bushido.uucp (Jim Harvey)
Newsgroups: comp.sys.amiga
Subject: Re: Reading 1581 disks
Message-ID: <1990Sep28.172623.6726@bushido.uucp>
Date: 28 Sep 90 17:26:23 GMT
References: <1990Sep21.155300.25903@ccu.umanitoba.ca> <26fac73f-2c9c.1comp.sys.amiga-1@tronsbox.xei.com> <1990Sep24.173635.2012@bushido.uucp> <439@cbmger.UUCP>
Organization: Bushido Systems of Ann Arbor, Michigan.
Lines: 30

In article <439@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes:
>In article <1990Sep24.173635.2012@bushido.uucp> jamesb@bushido.uucp (Jim Harvey) writes:
>>The TRANSFER utility program that comes with the ReadySoft C64 Emulator II
>>will do this.  It will also read a 1541 formatted disk in a 1020 drive, and
>                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>will read and write to a real 1541 drive with the use of an included adaptor.
>
>Is this REALLY true? With all the track-to-track read speed changes in
>the 1541 format? How do they manage that? Is the data density on a 1541
>so small compared to an Amiga or PC that these variations can be easily
>followed by the decoding software? Sounds very interesting.
>

They slow down the disk rotation by turning the motor on and off.  Bizarre,
but  it works.  I think the other 1541 in a 1020 reader (Disk-to-Disk by
central coast(?) who also make DOS-to-DOS) does the same thing.  It would 
seem that Macintosh disks could be read using the same technique.

>-- 
>Best regards, Dr. Peter Kittel  // E-Mail to  \\  Only my personal opinions... 
>Commodore Frankfurt, Germany  \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk


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Jim Harvey                      |  
Michigan Bell Telephone Co.     |  "Ask not for whom the Bell Tolls and you 
29777 Telegraph  Rm 3352        |   will only pay station to station rates."
Southfield, Mich.  48034        |
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