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05-20-2009, 08:39 PM   #1
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Corrupted Pentax RAW Files

I used a generic 4-Gb SD card that I owned before purchasing my K100D Super. It seem to work great for the first 90 images (saved in RAW format). Then when our female Sheltie gave birth to nine puppies, I grabbed my DSLR in the middle of the night and began recording the births. In the morning after shooting about 50 birthing images, I found out that the camera could not display the new images.

I am able to download the images to the HDD, but they do not display in Pentax Browser/Laboratory. The files are approx. 10-Mb in size, but do not display. Neither is there any image data.

I have tried a number of file recovery programs, but none are able to display the images. The files seem to be corrupted, not lost.

I replaced the card with a 16-Gb SDHC card and am able to shoot and download new images of the puppies as they grow.

Does anyone know how I can recover the ~50 images on the 4-Gb SD card?

Thanks!

-wade

05-21-2009, 04:06 AM   #2
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I have read 'somewhere' recently that someone managed to save their corrupted images by converting them to DNG using the free Adobe converter - can't actually find where I read that now ...

I guess you could try it as it saves new copies of the files rather than doing anything with the originals.
05-21-2009, 12:21 PM   #3
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You might want to watch out with those big SDHC cards. A lot of people (myself included) have had problems with them either corrupting files or refusing the save them entirely despite having space left.

In my case, I ran them through a Windows checkdisk, which found bad sectors towards the end of the disk. I think that may have been the cause. You may want to try that on your SDHC cards.
07-09-2009, 04:03 AM   #4
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QuoteOriginally posted by wadedesk Quote
Does anyone know how I can recover the ~50 images on the 4-Gb SD card?

Thanks!

-wade
I can't help with that but one thing you may learn from the experience:

Never use/buy cheap/average quality SD cards (even good sd cards are fragile and unreliable, compared with CF cards for instance); go always for the best quality available and preferably choose capacities around 1/2Gb (downside: you may have to switch cards more often); also, never fill up your memory card to the limit.

Good luck with the file recovery.

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