A Pentax (k-x) reflex digikam seems to corrupting the filesystem damaging the .DNG stored in it.

When i noticed this strange behaviour i create a bit-a-bit copy od the sd card (using fastdd) and i tried to restore the files with 3 tools: foremost, tsk (using sniper) and testdisk/photorec.

Here is the results:

foremost: 2/204

tsk (with sniper): active file 59/67 deleted file 4/130

photorec: 193/193

Legenda: good pic / total recovered pic