[Coco] Disk Basic and 512 byte block floppies.

Neil Morrison neilsmorr at hotpop.com
Tue Jan 20 00:08:18 EST 2004


----- Original Message ----- 
From: "Amardeep S Chana" <vxlzneo02 at sneakemail.com>

> Okay... this issue needs to be put to bed once and for all and I
want to
> make it perfectly clear:  There is no PC BIOS, MS-DOS, or Windows
API to set
> a sector size other than 512 bytes, and there NEVER HAS BEEN.  This
is in
> contrast with x86 Linux which does have device driver support for
special
> formats.

Maybe, but there is a table in all versions of MSDOS which is a list
of disk parameters and amongst those is the sector size. This CAN be
altered by software enabling you to read/write/format all sorts of
strange formats, including single density on the very few machines
whose hardware supports that.

See AnaDisk as an example of a program that does just that.

NM





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