[comp.sys.mac] MAC floppy format

danl@intelca.intel.com (Dan Lau) (10/13/88)

A friend asked me to post this for him, so please reply to me
via mail directly, as I normally do not read these
news groups.  Thanks.  (P.S., if this was discussed
recently, please someone send me a summary).
	Dan Lau, Intel Corp. (...!decwrl!intelca!danl)

I am looking for information on the Mac floppy disk format
and 3.5 inch drives.  I need specific information on:
- how GCR works and how the drives works.
- what is the width of the data window.
- what are the five different speeds and data rates for
  the different groups of tracks.
- how are sectors linked into files.
The published material tells me how many tracks and sectors
per track, but that is all I can find.  Is this stuff
published anywhere.  Thanks.