Hello

Is there any software capable of verifying the integrity of files ?

I managed to recover the data to my clients and I transferred them to my external hard drive, but there are some files of photos, music, videos, word, excel, PDF that they are unreadable.

Do you know any software that can analyze the files with the problem to create a report and send it to the customer ?

Thanks your help

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Sorry from my English

This works only clean if you create/have checksums before anything happens to compare a good state against.
https://en.wikipedia.org/wiki/Simple_file_verification

I don't know if such an allinone-tools exists, that would crawl over all files to check if it opens...

Some ideas:
Bad Peggy https://coderslagoon.com/

"File Integrity Checks" http://www.libpng.org/pub/png/pngintro.html

https://stackoverflow.com/questions/140 ... s-corrupte

https://mp3val.sourceforge.net/

Such an all-in-one tool would need to know about the internal of each and every file type in existence. Which makes it obvious such a tool is an illusion.

What type of drive were files recovered from and how was the data lost?

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Joep - http://www.disktuna.com - video & photo repair & recovery service

Hi mr44er

I tested BadPeggy-2.4.0 software to verify photos and mp3val for mp3 that they work.
I am still looking for the software to check videos and word, excel.

THANKS

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Sorry from my English

If the files are compressed (eg xlsx, docx, zip, 7z, rar), then you could test the files from the command line using 7-Zip.

https://7ziphelp.com/7zip-command-line

I think this command should test all the XLSX files in the \Recovered directory, and then write each result to a log file (the "-r" may not be necessary):

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A backup a day keeps DR away.

You could use ffmpeg to copy video files into a new container and log the output into a file. If anything is broken, ffmpeg will detect it.

Some example:


Edit:
I don't know how to script in Windows or if ffmpeg is available at all.
The manual way would be:


Also I remember that MS-Office software does keep hidden copies/versions in the same folder per file (but not how many and/or for everything)...maybe this older version is available if everything fails.

This is a lot easier if you just produce a report of files with problem sectors from pc3000 or whatever tool you're using to to logical extraction. Trying to do things after the event are always going to be problematic.

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Data Recovery Services in the UK.
https://www.usbrecovery.co.uk/

Yes, exactly, this is why I was asking about the actual issue. If it's reasonable to assume file corruption, then why is this so? If bad sectors, then somehow map bad sectors to files and you have your answer. If not bad sectors when why suspect corrupt files, what reasons do you have for this?

So far the thread has come up with less than 10 creative solutions for detecting corruption in specific file types, so that leaves us with how many thousands of file types we can not check at this point?

And while we're send on a wild goose chase, OP remains silent and doesn't answer questions.

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Joep - http://www.disktuna.com - video & photo repair & recovery service

Hi fzabkar

If I understood.
My Documents folder on external hard drive F:

in PowerShell
C:\Program Files\7-Zip> 7za for %i in (F:\Documents\*.xlsx) do 7z t %i -r >> xlsx_test_log.txt

Error:
F:\Documents\*.xlsx: The term "F:\Documents\*.xlsx" is not recognized as a cmdlet name, function,
script file or executable program. Check the spelling of the name, or if a path exists, verify that
the path is correct and try again.
At Line:1 character: 40
+ C:\Program Files\7-Zip> 7za for %i in (F:\Documents\*.xlsx) do 7z t % ...
+ ~~~~~~~~~~~~~~~~~~~
+ CategoryInfo: ObjectNotFound: (F:\Documents\*.xlsx:String) [], CommandNotFoundException
+ FullyQualifiedErrorId: CommandNotFoundException

THANKS

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Sorry from my English

If i remember well, AgentRansack is able to check if office files are logically corrupt by ticking "Office/PDF documents" option and enabling "deep search function".
I tried it few years ago!
https://forum.hddguru.com/viewtopic.php ... 82#p282282

Download link:
https://www.mythicsoft.com/filelocatorpro/download/

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My firmware database:
https://mega.nz/folder/O01DkBRI

Hi

If I understood I downloaded ffmpeg https://www.ffmpeg.org/download.html#build-windows

I pasted in C:\ffmpeg , I do in PowerShell

PS C:\ffmpeg> ffmpeg -i F:\Documents\*.mp4 -vcodec copy -acodec copy output.mkv

error

ffmpeg: The term "ffmpeg" is not recognized as the name of a cmdlet, function, script file, or program
executable. Check the spelling of the name, or if a path exists, verify that the path is correct
and try again.
To Line:1 character : 1
+ ffmpeg -i F:\Documents\*.mp4 -vcodec copy -acodec copy output.mkv
+ ~~~~~~
+ CategoryInfo: ObjectNotFound: (ffmpeg:String)[], CommandNotFoundException
+ FullyQualifiedErrorId: CommandNotFoundException


THANKS

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Sorry from my English

Hi michael chiklis

FileLocator Pro, It is a software that looks for the texts in the files, I read the subject that it is necessary MRT or DE of PC-3000. they sorted out the bad sectors and added the text to indicate the files with the problem sectors.

I am looking for a software that can find the file problem (Mp3, MP4, Avi, MPEG, Word, Excel, PDF...)

Currently I know to use search with RAW from DE from PC-3000 to sort files with problem sectors. The problem that we don't have the file name !

_________________
Sorry from my English

What is the "7za"?


I don't have any problem:

_________________
A backup a day keeps DR away.

This also works and is far better:

_________________
A backup a day keeps DR away.

Hi

I've had success with xls files, I've tried PDFs which it can't open.

7z t C:\check\*.pdf >> C:\check\test_log.txt

7-Zip 19.00 (x64): Copyright (c) 1999-2018 Igor Pavlov: 2019-02-21

Scanning the drive for archives:
2 files, 50394 bytes (50 KiB)

Testing archive: C:\check\Pdf1.pdf

Testing archive: C:\check\Pdf2.pdf

Archives: 2
OK archive: 0
Can't open as archive: 2
Files: 0
Size: 0
Compressed: 0

Thank

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Sorry from my English

PDF is not an archive format.

_________________
A backup a day keeps DR away.