[rescue] imaging old Mac double density floppy disks
bdwheele at indiana.edu
Mon Jun 19 14:32:46 CDT 2006
On Mon, 2006-06-19 at 15:24 -0400, kevin wrote:
> Lately, i've been trying to image a bunch of Macintosh formatted
> DD (double density) floppy disks using my x86 linux box. It
> seems to work like a charm for the HD floppies but none of the DD
> floppies work.
> Someone told me that the old Macintosh DD floppy drives (not the
> SuperDrives of days past) were "special" and that it was not
> possible to read older Mac formatted DD floppies using a PC
> floppy drive. Anyone know if there is any validity to this? I
> thought that none of that would be relevant if i was using dd
> (i'm not mounting the disks, just trying to image them).
> I'm using the following:
> $dd </dev/fd0 >./mac_floppy.img
> Any ideas?
I seem to recall that the 400K/800K were variable speed depending on
what track you were looking at. I believe you can only read them on an
old mac (or using a catweasel)
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