Subj : Re: CBM users groups in he San Jose area? and old CBM disk backup issue
To   : sdn45478@gmail.com
From : Computer Nerd Kev
Date : Sat Nov 24 2018 09:10 pm

sdn45478@gmail.com wrote:
> On Sunday, November 18, 2018 at 10:38:13 AM UTC-8, sdn4...@gmail.com wrote:
> Hi Kev,
> One test would be to use Linux DD (which copies entire file systems)
> to read (maybe) a 1541 disk in a Linux machine. If the result is a valid
> *.D64 file then that would be proof that an IBM can directly read a
> 1541 disk. (Whish I didn't recycle so many old PC's). I may be able to
> set a test up with my leftover PC stuff.

You can try it, but I don't think it will work. The PC controller will
use a different method to read the data from the disk, so the data you
get will be corrupted. It will be reading in the wrong positions, and
maybe also at the wrong speed.

Here's an old page describing various approaches to PC - CBM floppy
transfers:
http://www.zimmers.net/anonftp/pub/cbm/crossplatform/transfer/transfer.html#phys-disk

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