Date   : Tue, 18 Jul 2006 12:49:21 +0100
From   : "Ian Wolstenholme" <BBCMailingList@...>
Subject: Re: Turning dsd. and ssd. disk images to usable DFS/ADFS with DOSFS

Files with .ssd or .dsd (or .img or .adf for that matter) extensions are BBC disc
images, ie. exact sector-by-sector copies of an entire disc.  So you can't copy
them onto an already-formatted BBC and be able to read them, what you have to
do is to write the disc image directly to the disc using a sector reader/editor
like OMNIFLOP (Google will find this for you) for Windows or FDC for DOS.

SSD are Acorn DFS compatible single surface disc images (100K/200K)
DSD are Acorn DFS compatible double surface disc images (200K/400K)
IMG are the same as SSD
ADF are Acorn ADFS compatible images (160K/320K/640K).

You will need to format the disc in the correct format on the BBC first and then
use Omniflop.

Best wishes,


Ian

----- Original Message -----
From: Steve.Lancaster@...
To:  bbc-micro@...
Sent:  Tue, 18 Jul 2006 10:31:42 +0100
Subject: [BBC-Micro] Turning dsd. and ssd. disk images to usable DFS/ADFS
with DOSFS

Hello 

Help needed by a frustrated user!!!

I have a BBC Master 128 with a 3.5 floppy drive and one of Sprow's DOSFS 
ROMS.

I can format 3.5 floppy disks to 720k that both the Master and my PC can 
read. I can drag and drop dsd and ssd files to the floppy and when using 
*MOUNT and *CAT on the Master the files are there but I do not know how to 
run them.

I have tried downloading the disktools from mdfs.net and have transferred 
them to floppy. The BBC recognises these on the floppy but I do not know 
how to turn the images into usable DFS/ADFS files. The BBC can LIST the 
disktools but I do not know how to use them - I cannot find any 
instructions anywhere.

Any suggestions?

end

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