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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 12 Feb 2011 (Saturday) 19:48
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Possibly corrupted file? HELP!

59 posts
Joined Feb 2007
Location: Auckland, New Zealand
Feb 12, 2011 19:48 |  #1

Hello all, I am trying to import one of my shoot from yesterday into LR3 this morning, only to find that out of the 735 files on the Sandisk Extreme IV there were 300ish files that can't be imported... LR3 basically has an icon of "Preview not Available"

All the files were shot in RAW, and I have previewed them over and over again on my camera without any problems, I have even switched between cameras and it still allows me to preview the files that were not available to import...

Can anyone shed some light on my little situation??

Thank you!!!!

DRAW Photography - http://www.drawphotogr​ (external link)

156 posts
Joined Feb 2007
Location: IL
Feb 12, 2011 20:41 |  #2

Are you downloading using a card reader?
Since the camera can "preview" them, can you copy them from the camera to the computer?

Digital Rebel XT (350D) w/Opteka Grip - Canon 18-55 IS - Sigma 70-300 1:4-5.6 APO DG - Sigma EF-500 DG Super Flash

54,657 posts
Gallery: 60 photos
Likes: 571
Joined Sep 2007
Location: Vancouver, WA USA
Feb 12, 2011 22:22 |  #3

Yeah, use something other than Lightroom to copy (not move) the files onto your computer so you can troubleshoot things. If you are not using a card reader, I'd get one to eliminate camera/computer comm issues. If you are using a card reader then try opening the card folder in your system browser so you can copy them over.

Alternatively you can try using EOS Utilities or ZoomBrowser to get the images off the camera, or ZoomBrowser to copy them off the card/reader.

If you are having problems opening up the card folder you may have a card problem or a cable problem. Realize also that viewing the image in-camera is not viewing the Raw file but only an embedded jpeg -- if the card is corrupt then the Raw data could be messed up even if you can see the jpeg.

Once you copy them onto your computer, a quick way of checking the integrity of the files is to open them in the Canon software -- ZoomBrowser will show you the embedded jpegs, but you need Digital Photo Professional to view the Raw files.

You can also import files into Lightroom from a folder on your hard drive using the Import from files/folders if you succeed in copying the onto the computer and viewing them in DPP.

If, though, any of these things fail to work, you may have a corrupted card. You can try one of the image recovery programs to run through the memory card and "rescue" the image -- they are pretty effective.

Well, give things a try!

Two Canon cameras (5DC, 30D), three Canon lenses (24-105, 100-400, 100mm macro)
Tony Long Photos on PBase (external link)
Wildlife project pics here (external link), Biking Photog shoots here (external link), "Suburbia" project here (external link)! Mount St. Helens, Mount Hood pics here (external link)

Fatal attraction.
13,497 posts
Likes: 213
Joined Apr 2005
Location: Gesher Haziv, Israel
Feb 13, 2011 03:23 |  #4

A bad card is a definite possibility that needs to be considered. I have seen many instances where the embedded jpg display image was good for use by the camera although the RAW data was corrupted.
If the RAW is corrupted and not recoverable, another alternative is extracting the jpg (with the free Irfanview, for instance). However, the jpg may be relatively low resolution, depending on the camera model.

Elie / אלי

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Possibly corrupted file? HELP!
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