Other great features of AllDup include the ability to filter (include or exclude) based on filename and/or folder name and/or filesize.

(It could even detect when I ripped two identical songs from two different CDs-with different tags of course.) Of course it can detect dupes based on other factors besides byte-for-byte content, like filenames, dates, etc. As such, it is very fast: it can for example scan >250,000 of sizes from 1B-5GB in ~30mins (I have done it on my system several times).Īnother great (and for some reason rare) feature of AllDup is as I mentioned that it can scan for duplicate MP3s by their actually audio data while ignoring tags, so two MP3s that are the same but have differing tags (very common when downloading) will be detected as duplicates. Anyway, AllDup searches for duplicate files, but unlike the others, it uses a lot of the tricks and techniques that I was going to use in my own DFF. It is the first and only one that actually made me abandon a project (technically mine isn’t completely abandoned, it’s just no longer being worked on since I don’t need to write it anymore because AllDup does everything I want of it). All of them had problems that frustrated me enough that I decided to write my own and laid out a list of the features I demand of a DFF.Īnd then I found AllDup. I used CloneMaster 2.19 for a time because it was the best one I could find, though even that wans’t perfect (I wanted one that could also detect duplicate MP3s by audio content, ignoring the tags).

I have tried literally dozens of duplicate file finders (I still have the installers/ZIP files for about 20 of them sitting around).

Alldup files filtered