Path: utzoo!mnetor!uunet!husc6!rutgers!bellcore!faline!ulysses!sfmag!sfsup!shap
From: shap@sfsup.UUCP (J.S.Shapiro)
Newsgroups: comp.sys.mac
Subject: Re: Converting between Mac and MS-DOS
Message-ID: <2563@sfsup.UUCP>
Date: 5 Jan 88 22:41:57 GMT
References: <446@sdics.ucsd.EDU> <283@dbase.UUCP>
Organization: AT&T-IS, Summit N.J. USA
Lines: 13
Summary: Mac MS-DOS IWM disk formats

In article <283@dbase.UUCP>, drc@dbase.UUCP writes:
> 
> ...The fact that it doesn't work with the 3.5" drives
> has something to do with different recording techniques between the Apple and
> DOS worlds (I was told this, don't know it firsthand).  I hope this helps.
> 
> Dennis Cohen

Yes, it's true. Way back when they put together the Apple I,
Steve Wozniack came up with this frob called an IWM (for
Integrated Woz Machine). This is a run length encoding scheme
to get better disk usage. On the macs, this was put into a
a PLA, and consequently you can't get around it.