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I'm trying to recover thousands of photos and videos from a corrupted SD Card.

I've tried to recover the SD Card with chkdsk /F /R /X . Here is the relevant output:

"Corruption was found while examining the volume bitmap." ... The disk does not have enough space to replace bad clusters detected in file \FOUND.000\FILE0082.CHK of name 76599. Corruption was found while examining files in directory \FOUND.000\ (246). 100 percent completed....
File and folder verification is complete. ... Free space verification is complete. Windows has made corrections to the file system. No further action is required.

Now I'm using Robocopy with the /R:0 and /W:0 options to recover files. It successfully moves a large percentage of files. In some cases it detects an error (always the same error, different files) and moves quickly on, e.g.:

  New File           1.5 m    20230213_133228.jpg

2024/01/25 10:23:05 ERROR 23 (0x00000017) Copying File G:\DCIM\Camera\20230213_133228.jpg Data error (cyclic redundancy check).

In other cases it just completely hangs on some files, e.g.:

  New File           1.8 m    20230213_151953.jpg

13%
26%

I've even left it overnight to see if it just takes ages but there was no progress at all. Interrupting with Ctrl-Break also takes ages or doesn't seem to stop it at all, in which case removing the SD Card (which is in a simple USB SD Card reader) is a janky solution but does finally interrupt the job.

I then manually add the problematic files to an exclude files list in the Robocopy job file and rerun. The next n files, from just a few to over a hundred, are copied before it hangs again.

This is very tedious and time consuming!

  • Is there any way to set a timeout and then skip the files on which robocopy hangs or automatically append them to the exclude files list and restart?
  • Are there any other solutions?

I've also tried TeraCopy but that hangs too.

  • Any other recommendations for a robust file copier that will not hang on corrupt files?
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1 Answer 1

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I use Beyond Compare for copying. Its interactive but continues with the next file if there is an error on the current one.

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  • Thanks for the suggestion, Rohit. I've just tried the file copying functionality (presumably I have to sync the source and destination directories) but unfortunately Beyond Compare hangs already when I try to navigate to / select the source directory. :-(
    – anglosachsen
    Commented Jan 25 at 10:55
  • After managing to restart BC I tried adding the source directory path manually and the sync started. However it hit a Cyclic Redundancy Check (same error as Robocopy finds and skips) and is unable to copy the first file. It then stops. I can neither stop nor pause and resume the operation. I'm new to Stack Exchange / SuperUser and havent't worked out how to add a screenshot here yet!
    – anglosachsen
    Commented Jan 25 at 11:14
  • @anglosachsen you add photos to your question, nowhere else ... edit your question and then click the button with the mountains and moon
    – jsotola
    Commented Jan 26 at 2:21

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