Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!DFVLRGO1.BITNET!RZ1S
From: RZ1S@DFVLRGO1.BITNET
Newsgroups: comp.os.cpm
Subject: (none)
Message-ID: <8902061236.AA11714@ucbvax.Berkeley.EDU>
Date: 6 Feb 89 12:36:12 GMT
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X-Unparsable-Date: Mon, 06 Feb 89 13:29:03 MEZ

Date: 06 February 1989, 13:24:25 MEZ
From: Christian Lohmann                              RZ1S     at DFVLRGO1
To:   info-cpm at wsmr-simtel20

Subject: Info-CPM V89/13 AMSTRAD & DISKS

The 3" disks are single sided/single density with 40 tracks each side
and 36 sectors/track (128 byte sector size).
So you will have 2*180 KB of data minus system tracks and dir-groups
on a disk.
I don't know (sorry) how much bytes for system are used by this CPM3
machine but the AMSTRAD 464 CPM2.2 disks have two system tracks and
two dir-groups so the disks will at least contain 169 KB on each side.

I heard of a second 3" drive distributed by AMSTRAD, that is double
sided/double density. So you'll get 720 KB (minus system ...).


<Christian>