Corrupted JPEG files after recovery
Posted: 30 Dec 2013, 03:03
I have successfully recovered over 20,000 jpeg images from a partition that had its file system corrupted.
I used 'dd' command to copy the unreadable/unmountable partition to another hard drive which created a 451GB file!
I then used the PhotoRec program and had over 380 folders created with many, many files. The pictures where stored on the hdd using iPhoto, so there were pictures, two size of thumbnails and the faces pictures from each picture. Then I used EXIFtool by Phil Harvey to change the name of the jpgs to their creation date and automatically place them in year and month folders. All seemed fine specially in the really old files from the year 2000 through 2010. But once I got into the 2013 pictures, mostly a particular month most of the recovered files are corrupted. They are either cut off partially or some are scrambled or some have bunch of colors missing. There are also some that contain multiple pictures all in pieces! Overall, going through two years worth of pictures (tedious process) I have identified about 150 pictures that are corrupted (most are from our last vacation that I hadn't backed up, yet!)
When running the EXIFtool, I kept the log that shows which recovered file is changed to what name, so I can go back and find the file in the correct folder. I also still have the original copied partition (the one that is 451GB).
Here comes the question: Has anyone tried to fix a situation like this? I don't know how to search a file that size and start looking for headers and other info to see if the files were recognized correctly by PhotoRec.
Is anyone out there that has had a similar problem and has been able to try to recover more of the pictures than what PhotoRec was able to do?
Any ideas are welcome!
Thanks...
F.S.
I used 'dd' command to copy the unreadable/unmountable partition to another hard drive which created a 451GB file!
I then used the PhotoRec program and had over 380 folders created with many, many files. The pictures where stored on the hdd using iPhoto, so there were pictures, two size of thumbnails and the faces pictures from each picture. Then I used EXIFtool by Phil Harvey to change the name of the jpgs to their creation date and automatically place them in year and month folders. All seemed fine specially in the really old files from the year 2000 through 2010. But once I got into the 2013 pictures, mostly a particular month most of the recovered files are corrupted. They are either cut off partially or some are scrambled or some have bunch of colors missing. There are also some that contain multiple pictures all in pieces! Overall, going through two years worth of pictures (tedious process) I have identified about 150 pictures that are corrupted (most are from our last vacation that I hadn't backed up, yet!)
When running the EXIFtool, I kept the log that shows which recovered file is changed to what name, so I can go back and find the file in the correct folder. I also still have the original copied partition (the one that is 451GB).
Here comes the question: Has anyone tried to fix a situation like this? I don't know how to search a file that size and start looking for headers and other info to see if the files were recognized correctly by PhotoRec.
Is anyone out there that has had a similar problem and has been able to try to recover more of the pictures than what PhotoRec was able to do?
Any ideas are welcome!
Thanks...
F.S.