Missed over 2,000 duplicates

I got my music libraries split into too many different places, and when I put them all together, I saw many duplicates. I ran this app. It reported that I had no duplicates. I tried again, thinking I must have chosen the wrong path to check and got the same result. I then ran “Duplicate Detective”, which found and cleared over two thousand duplicates that this app missed entirely. Completely worthless.

alsj2014 about Duplicate Finder - File Clean, v1.3.0