Re: reading 360K MS-DOS disks in a 1571?

From: Michał Pleban <>
Date: Wed, 25 Jul 2018 12:25:46 +0200
Message-ID: <>
Baltissen, GJPAA (Ruud) wrote:

> Why 128 bytes? I rather would have expected 256 bytes instead of the original 512.

If I remember correctly, CP/M disks have 128-byte sectors. But it was
long time ago, so I might be wrong here and it might have been indeed
256 bytes. However, the point was that the format was different from
standard 512-byte sectors so a custom Disk Parameter Block was necessary
in the first sector. I did not know how to format the disk with 512-byte
sectors, nor how to read such disks.

Received on 2018-07-25 13:00:39

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