Hi Joe,

On Thu, 22 Dec 2011 14:01:12 +1300 IVP wrote:
>
>> You can use a binary sector editor to check the actual contents
>> of these sectors (0x2000, and perhaps 0x0001) and even put
>> some unique string contents in there just to be able to
>> recognize them in testing ...
>
>The card comes up as I: in a card reader
>
>And I do this with dd to get 50M off it
>
>dd if=3D\\?\Device\Harddisk5\Partition0 of=3Dd:\dd\card.img bs=3D1M=20
>count=3D50 --progress

OK

>After filling selected sectors with known values with Frhed, would
>I use this to write it back to the card ?
>
>dd if=3Dc:\dd\card.img of=3D\\?\Device\Harddisk5\Partition0 bs=3D1M=20
>count=3D50 --progress

I would think so, but I have never used dd on Windows
since I have my own tool for that :-)

>Just checking. The last thing I need is a wayward write to one of the HDD

Hmm, I understand it is just as scary to use an unfamiliar tool
then it is to use dd, but with DFSee, you just 'open' the disk,
the start the binary editor.

        File ->
           Open object to work with ->
              Disk ->
                  ... select disk from list ...         (identify on size u=
sually)

        Edit ->
           Sector, HEX/ASCII

This will start the binary edit on sector 0 of the selected disk.
          =20
It will write back to the same disk (and sectors) as it was reading from ..=
..
You can edit the sector contents either in HEX or in ASCII (tab to right pa=
ne)
and it will prompt to write back as soon as you navigate to the next sector=
..

Regards, JvW


Jan van Wijk, author of DFSee; http://www.dfsee.com
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