The files are probably JPEG and assuming the data hasn't been wiped the
beginning of each file can probably be located by looking for a JPEG header.
Chuck Norcutt
Manuel Viet wrote:
> Le lundi 10 Juillet 2006 23:13, Chuck Norcutt a écrit :
>
>>Manuel may be correct but I find it unlikely that the camera actually
>>bothers to rewrite every sector on the media. Such a process would take
>>a long time so I suspect that's not what it does.
>
>
> Maybe.
>
>
>>Assuming it has only nuked the directory and not the FAT it should be
>>possible to reconstruct it.
>
>
> If I were to write that kind of formater, I would definively nuke both root
> dir AND the 2 copies of the fat. That's only a couple of sectors, not a huge
> task. For a more than quick format, that is.
>
>
>>Unless there were intermediate image
>>erasures all the data should be sequentially allocated which should make
>>the task a little easier. If the directory has been nuked then the
>>first cluster number of each file is missing but smart software should
>>be able to back track and figure it out from the FAT entries that
>>exist... especially since most if not all references are sequential.
>
>
> Hum... If there was a mix between resolutions of pictures, data maybe
> sequential but the starting / ending clusters won't be too easy to find. And
> there maybe gaps...
>
> Assuming this is some type of fat16, I'd certainly make a raw dump of the
> card
> with a linux box (macintosh can be booted on ubuntu) and figure things out
> from there with my trusted hexedit. But if the formating is complete...
>
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