Anyone have a utility to recover Corrupted PEF files?
allaround6 at earthlink.net
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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