Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!marc
From: marc@Apple.COM (Mark Dawson)
Newsgroups: comp.sys.mac.misc
Subject: Re: Reading Mac floppies on DOS
Keywords: DOS, format, floppies
Message-ID: <47428@apple.Apple.COM>
Date: 17 Dec 90 14:57:26 GMT
References: <23@soul.UUCP> <1990Dec17.024659.27475@monu6.cc.monash.edu.au> <9830@pasteur.Berkeley.EDU>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 34

In article <9830@pasteur.Berkeley.EDU> c60a-cz@danube.Berkeley.EDU.UUCP (Donald Burr) writes:
>In article <1990Dec17.024659.27475@monu6.cc.monash.edu.au> typ125m@monu6.cc.monash.edu.au (John Wilkins) writes:
>>ckoch@soul.UUCP (Chriss Koch) writes:
>>> Is there a way to read mac floppies on (shudder, gasp, choke, puke...) IBM?
>>Answer: Yes. Apparently the Copy II PC board and software will allow
>>a 1.44Mb drive to read Mac 800k (& 1.2Mb??) disks on a PC. So a friend
>                                    ^^^^^^^
>>tells me who has done this (I saw him do it!), altho' I don't know
>>the techie details.
>
>
>Close.  The Mac high density floppies are 1.40 MB. Interesting how they
>couldn't fit an extra .04 MB on the newer format.  I wonder how stuff
>like tracks per inch, tracks on disk, sectors per track, track/data density,
>etc. compares between the Mac 1.40 SuperDrives and the (shudder) IBM 1.44
>drives.  Anyone got any answers?
>
My disk has 1440K--after formatting and putting the file system on, it has
1416K free (just like an "800K" disk has 780K free after the file system is
on).  On a side note Kennect (who makes the Rapport product) gets 2.4 meg
on the high density floppies by combining the GCR and MFM formatting methods
using regular high density drives.

Mark



-- 
---------------------------------
Mark Dawson                Service Diagnostic Engineering
AppleLink: Dawson.M

Apple says what it says; I say what I say.  We're different
---------------------------------