AllSync & AllDup

Can't we assume that the data hasn't changed if the file size and the file modified timestamp are the same?

Thx for adding the database functionality!

Search method: file size + file content
Comparison methode: MD5

I if run a comparison with these settings the first run takes a long time (i see in the statistics that a lot of checksums are begin created).
The second time I run this comparison it takes ...

I noticed that after the scan data in the jpeg file (after the SOS and EOI marker) there are some trailing bytes and after those trailing bytes a new image starts (the preview image which is larger than the thumbnail) with a new SOI, SOS and EOI marker and then again some trailing bytes.

I know, I have no idea why Sony adds those trailing bytes.
I have photos (unedited, straight out of the camera) with more then 22000 bytes after the EOI marker.
In that case extending the search for the EOI marker to 4096 bytes isn't enough.
Is it possible to make that a configurable field (so I can ...

Alldup 4.4.14

Download a file from a Sony A6500 (for example: https://3.img-dpreview.com/files/p/sample_galleries/4109805089/8077051969.jpg).
Make a copy of that file in the same directory and add an IPTC keyword to one of the files.

Start Alldup and search for "file content" and "ignore metadata ...

the option "ignore exif metadata of jpeg files" opens every file and check for the metadata...

In the comparison criteria I also checked the "file name" option.

Is it possible to check whether there is another file with the same "file name" before opening the file to check the metadata ?
If ...

Compare method: compare only files between different source folders
Comparison criteria: file name and file content
File content: ignore exif metadata of jpeg files.
file name: compare all characters of a file name

The first source folder has only one file.
The second source folder has +50.000 jpeg ...

If I start a search based on the file content using a checksum it would be a nice addition if at the end the program would save for each file the filename, filesize, last modification timestamp and the checksum to a file.

If I later on want to run a compare on the same dataset I could refer to that ...

suggestion: further speed improvement
Comparing by a checksum value is much faster then comparing byte by byte because the program needs to read the files only once.
But even reading those files once can take a long time when a lot of files need to be compared.
For that i would suggest an option to ...

Thx for the very nice and useful application !

1) Concerning the option "Ignore Exif metadata of JPEG files"
Which jpeg markers are being ignored if i check this option ?
I have files where the image data is the same but the iptc data was changed and alldup
didn't detect them as duplicate.

Would ...