PC as Apple II External Disk Drive?

["Greg Lindhorst" <gregli@email.msn.com>]

There was recently a short discussion on using a Commodore drive drive from
an Apple through the external floppy interface.

Idea:  Could a PC emulate an external Apple II disk drive, through its
parallel port?

Imagine a DOS program firing up, with an image file name as an argument, and
reads this image file into memory.  (I would use DOS so that you can get the
fine grain timing control on the parallel port).  The Apple II can
read/write to this image file, changes stored back to the PC in memory.  The
DOS program terminates with a keystroke and the changed image file is
persisted to the PC hard disk.

Does this seem feasible?  This would be a great way to transfer files
to/from the PC, and make using large stores of image files, on the real
hardware, very easy.

I personally don't have the technical data on the floppy disk interface to
write the software (the cable is relatively easy).  If someone out there
does have the details, and doesn't have the time to write the code, I'd be
happy to do it.

greg