[Coco] CoCoDisk update now available

[Bob Devries]

Hi Darren,

Thanks for incorporating my suggestions in your CocoDisk programme.

I have some more suggestions:

I noticed that if there are too many errors, your programme still quits 
without saving anything. I don't have any idea about how you're doing this, 
but here's my suggestion FWIW:

When asked to read the disk, perhaps CocoDisk should create a temporary file 
of the size required, e.g. 630*256 bytes for an DECB disk; 2880*256 bytes 
for double-sided 80 tracks. Fill that temp file with the selected error 
byte, and then overlay that file with the good sectors as they're read. That 
way, no matter how many sectors are faulty, the user will still get 
*something*. When the read is finished, ask the user for a filename to 
copy/rename that temp file to.

Hope it helps,

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Darren A." <darccml at hotmail.com>
To: <coco at maltedmedia.com>
Sent: Saturday, May 19, 2007 8:09 AM
Subject: [Coco] CoCoDisk update now available


> Hello all,
>
> I have posted an update to my CoCoDisk utility (version 0.2). This version
> incorporates the features suggested by Bob Devries to allow disks with
> bad/missing sectors to be read.
>
> When a sector cannot be found due to a missing, corrupted, or illegally
> formatted ID field, the corresponding sector in the disk image file will 
> be
> filled with a user-selectable byte value.
>
> When a sector is readable, but produces a CRC error, then whatever data 
> was
> read will be saved in the disk image.
>
> When any of these errors occur, a separate text file which lists the 
> errors
> is saved along with the image file.
>
> The update is available here:
> <http://www.coco3.com/users/DarrenA/CoCoDisk02.zip>
>
> Cheers,
> Darren
>
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