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From: stephen@hpdmd48.boi.hp.com (Stephen Holmstead)
Newsgroups: comp.sys.amiga
Subject: Re: ***DoubleDisk***
Message-ID: <15440031@hpdmd48.boi.hp.com>
Date: 27 Oct 90 18:35:27 GMT
References: <1990Oct25.200915.27389@usenet.ins.cwru.edu>
Organization: Hewlett Packard - Boise, ID
Lines: 30

J. Norell Guttman wrote:
>There is a program available for the IBM and its clones called DoubleDisk.
>It can in many cases more than double the hard drive capicity.  According
>to what I have heard, it is written in Assembly and reads and writes
>between tracks of the hard drive thereby increasing ones density.
 ^^^^^^^^^^^^^^
This sort of thing is IMPOSSIBLE to do on a SCSI harddisk.  

>[stuff deleted]
>Is there something like that for the Amiga or if I want cheap hard drive
>capacity for text data should I just go after an IBM clone with a cheap 
>hard drive with 250 megs giving me with DoubleDisk over half a gigabyte.

Not if you are using a SCSI harddisk (and I believe most Amigas have
SCSI harddisks).

BTW, harddisk manufactures make their track spacings for a REASON!  The
reason is most commonly that the data is not reliable if the tracks are
spaced any closer (due to head shift and other off-track related errors).
You may get away with it for awhile, but I wouldn't store anything of
VALUE using the scheme that you described (I should know; I make
harddisks for a living).

>J.Norell Guttman
>njg2@po.cwru.edu

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