Question Best way to verify backup files

Apr 12, 2021
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Hello. Which is the best way to verify files (checksums?) when copy

I must copy over 100gb through USB, and last time I was transferring such many gigabytes, some files (jpg) was broken. File size was OK, thumbnails OK, but they displays only partially, while original files was OK.

Is FreeFileSync OK for this task?

I set:
VerifyCopiedFiles Enabled to true
in AppData\Roaming\FreeFileSync\GlobalSettings.xml
 
You use Windows ?

Suggest you find some file sync tool for such a job. One Windows app I've used for many years is TreeComp, it gives the user very good manual control over files that is changed in one directory, and you can also choose to set up for binary comparison of file contents (can potentially take very long time).
 

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