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From: aroest@fwi.uva.nl (Axel Roest (N))
Newsgroups: comp.sys.acorn
Subject: Re: high density discs.
Keywords: Mac
Message-ID: <1991Jun12.131735.15192@fwi.uva.nl>
Date: 12 Jun 91 13:17:35 GMT
References: <1991Jun11.160020.8493@ira.uka.de>
Sender: news@fwi.uva.nl
Organization: FWI, University of Amsterdam
Lines: 36
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angelo@i41s16.ira.uka.de (Angelo Schneider Betr.Prechelt) writes:


> patrick@sideways.gen.nz (Pat Cain) writes:
>>  The ability to read high density PC discs would be useful to a lot more
>>  people than the ability to read Mac discs. 

>Ha, Ha, Ha!
>I' know about 20 Archimedes Users, none of them is a IBM User.

I would also rather be able to read Mac discs than IBM discs (ofcourse I want
to read & write both if possible)

>he also writes:


>The HD Drive used by Apple is a Sony Drive. The only differenc to other Drives 
>is the ability to eject its Disks automaticly and to generate an interrupt whe
>a Disk is inserted.

>The Disks are written in standard MFM-Format.

That may be true for HD mac discs, DD discs are definitely NOT standard MFM:
De drive speed is changed according to the track being read.
I know of no 'standard' disc drive where you can change the rotation speed.

>>  As long as they are standard drives then a high density drive for 
>>  the Archimedes should be able to handle both PC and Mac formats with
>>  the appropriate software.

Let's make that Mac High Density format. There are still more Mac's around with
normal (DD) disc drives than there are with high density drives.

Axel
-- 
Strike a pose... There's nothing to it.