Anyone have a utility to recover Corrupted PEF files?

Paul Sorenson allaround6 at
Wed Oct 7 00:46:54 EDT 2009

Have you tried copying from the command line?  Try using xcopy with the 
/c switch.  That should copy the file(s) regardless of errors. 


P. J. Alling wrote:
> Been there done that.  The file recovered has the same read problem.  
> I don't know if it's got the CRC failure because I simply deleted the 
> recovery directory when image I wanted to work with failed in the same 
> way when trying to open it with the raw converter..  I've got five 
> Ultra II extreme cards two 4gb and three 2gb cards, I'm not sure which 
> card these came from so this will become a bit of a project...
> Graydon wrote:
>> On Tue, Oct 06, 2009 at 11:21:20PM -0400, P. J. Alling scripsit:
>>> This is absolutely weird.   I can view it in Pentax Photo browser, 
>>> with  Ifranview or as a thumbnail using the Windows PEF Codec.  I 
>>> get a CRC  failure when I attempt to copy the files. I haven't seen 
>>> a file fail  with CRC failure for years.  Especially one that can be 
>>> read by /any/  program at all.  I've run a file structure and 
>>> hardware diagnostic on  the drive and there are no reported 
>>> problems.  So I have data files that  cannot be backed up with the 
>>> standard copy utility.
>> You probably don't have a complete file; all of those viewers are going
>> to pull the embedded thumbnail (usually one camera LCD sized, plus one
>> full sized), and it comes before the actual raw data in the file.
>> Sounds like you've got a bad sector on the card, which is a bad sign for
>> the card, and probably means a chunk of the raw data is gone if the copy
>> operation fails.
>> You might want to run disk recover tools on the card and see what that
>> gets you. Flash memory should fail to read-only and the data may still
>> be there, and the problem is that the copy operation can't update some
>> aspect of the file meta-data.
>> -- Graydon
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