Re: Reading apple disks on PC

["Bryan Parkoff" <spam>]

    You can use BlueDisk controller card from ///SHH Systeme, Germany.  It
can be installed in Apple II motherboard.  You can be able to transfer DOS
3.3/ProDOS images between BlueDisk controller card and Apple II Disk
controller card since GCR and MFM encodings are not the same.

Bryan Parkoff

"Michael Pender" <mpender@hotmail.com> wrote in message
news:XAFQa.1178$OC4.956@nwrddc01.gnilink.net...
> Paul Schlyter <pausch@saaf.se> wrote in message
> news:betttj$1b9n$1@merope.saaf.se...
> > In article <yLtQa.13001$D%1.10374@nwrddc01.gnilink.net>,
> > Michael Pender <mpender@hotmail.com> wrote:
> >
> > The incompatibility in disk format which makes it impossible to read
> > Apple disks in standard PC hardware is at the lowest-level encoding:
> > the Apple II used GCR whihe the PC uses MFM.  Early Macs used GCR
> > too; later MFM disks were used by Mac but a lot of Macs have floppy
> > drives capable of reading GCR disks too.  PC floppy drives have
> > never been able to read GCR disks and will never be.
>
> Is a reference available that outlines the differences between GCR and
MFM?
> If that is the only difference, then it should be possible to read/write
> PC-format disks on an Apple II, even if the opposite is not true.
>
> - Mike
>
>