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Hi All<br>
<br>
I found an option using exiv2 under windows<br>
<br>
>bin\exiv2.exe -pp -q P2280067_DxO-corrupted.jpg<br>
Exiv2 exception in print action for file P2280067_DxO-corrupted.jpg:<br>
P2280067_DxO-corrupted.jpg: The file contains data of an unknown
image type<br>
<br>
>bin\exiv2.exe -pp -q P2280067_DxO.jpg<br>
Preview 1: image/jpeg, 317x237 pixels, 17356 bytes<br>
<br>
>bin\exiv2.exe -pp -q .\P2280067.ORF<br>
Preview 1: image/jpeg, 160x120 pixels, 9080 bytes<br>
Preview 2: image/jpeg, 3200x2400 pixels, 1060974 bytes<br>
<br>
I think that could be a good solution to find corrupted jpeg. Based
on this I have some thought<br>
- as exiv2 is native with Digikam, I guess such error could be
visible? <b>Is there some "debug level" or some logs somewhere that
could report such errors ?</b><br>
- I'm not expert on coding so don't know how to translate such
command to a recursive search on a set of folders?<br>
- seems to apply to raw also , but I don't have corrupted raw to
perform the test<br>
<br>
thanks to share your feedbacks and may be other option<br>
<br>
Frederic<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">Le 11/04/2023 à 18:13,
<a class="moz-txt-link-abbreviated" href="mailto:plowmail2010@gmail.com">plowmail2010@gmail.com</a> a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:dd9e209a-f400-3a26-b5b9-aebc4eab3111@gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p><font face="Times New Roman, Times, serif">Yes, disk space can
be a problem. On the other hand, compare the cost of disks to
the value of your files. 1 TB SSD's run about $65 USD. A 2
TB disk is about $60.<br>
</font><font face="Times New Roman, Times, serif">My search for
"validate jpg files" revealed several candidates, but they
seem intended for programmer/geek people. For example, the
JPG data begin with FFD8 hex and end with FFD9. So all you
need do is find or write a program to test for those values.
And sure enough, people have done that, if you can figure out
how to build/install on unix/linux.<br>
Maybe this repair site will help: <a moz-do-not-send="true"
href="https://online.officerecovery.com/pixrecovery/"
class="moz-txt-link-freetext">https://online.officerecovery.com/pixrecovery/</a>
I have not tried it.<br>
(Confession: I am a former programmer/geek. Now I am just a
geek.)</font></p>
<p><font face="Times New Roman, Times, serif">Bob</font><br>
</p>
<div class="moz-cite-prefix">On 4/11/2023 10:51 AM, frederic
chaume wrote:<br>
</div>
<blockquote type="cite"
cite="mid:5b7617a2-63c3-7570-8361-1ae7e31e6b43@gmail.com">I'm
using FreefileSync each time I import new raw files. It includes
a version management, but I had to remove it the because of the
disk space used, so today I'm relying on the network trashbin
plus a regular backup on an another disk. <br>
But clearly not enough 🙁 <br>
<br>
What could help is to be able to validate the integrity of the
collections and/or the backup. So if any idea is welcome <br>
<br>
Frederic <br>
<br>
<br>
Le 11/04/2023 à 16:34, <a class="moz-txt-link-abbreviated
moz-txt-link-freetext" href="mailto:plowmail2010@gmail.com"
moz-do-not-send="true">plowmail2010@gmail.com</a> a écrit : <br>
<blockquote type="cite">On 4/11/2023 6:30 AM, frederic chaume
wrote: <br>
<blockquote type="cite">my concern is that running another
backup may overwrite the correct file by a acorrupted
version, that's why I'm trying to make a check before
another backup <br>
</blockquote>
<br>
Off on a tangent... <br>
If your backup procedure can overwrite older backups, you need
to use a better backup. <br>
I, too, am a victim of Windows. <br>
I use Macrium Reflect ($69 USD). <br>
I don't know how to make it overwrite earlier backups. It's
probably impossible. <br>
<br>
Bob <br>
<br>
</blockquote>
<br>
</blockquote>
</blockquote>
<br>
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