Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!portal!cup.portal.com!Gator
From: Gator@cup.portal.com (Walter Thomas Reed)
Newsgroups: comp.sys.amiga
Subject: Re: Getting 1.5 MB on a standard 880K floppy without compressio
Message-ID: <16362@cup.portal.com>
Date: 29 Mar 89 00:19:16 GMT
References: <3631@sugar.hackercorp.com> <94323@sun.Eng.Sun.COM> <96103@sun.Eng.Sun.COM> <3669@sugar.hackercorp.com>
Organization: The Portal System (TM)
Lines: 16

>> >What about GCR?

>> It writes the same number of bauds as MFM so no net gain. 

>The one Apple uses on the ][ does, maybe, but there are denser GCR codes
>available and they're supposed to be more resistant to noise than MFM and
>RLL.

Well, according to Amiga Disk Drives Inside and Out (by Abacus)
the amiga cannot handle several one bits following each other, so the
recording density is changed to half speed (4ms/bit instead if 2ms.)

Does this mean that GCR is less effecient than MFM and you actually get less
storage?  The book was unclear about that.

Walt