DigitalVolcano Software Support

This would be super rare to have an MD5 collision in a normal fileset. I do have a couple of jpgs with different pictures within and the same MD5. They were deliberately created using a supercomputer though!

It's a good idea and could be useful for 'Exact content' matching (Regular mode).
On the other modes the duplicates within the groups may be wildly different sizes and it's not for the program to decide which copies are to be removed. Perhaps a minimum/maximum saving could be appropriate here.

Yes, point taken. It does use a standard colour chart depending on the order - which as you say can isn't helpful in the duplicates pie chart.
Will log as needing a tweak in the next update.

No problem, hope you find version 5 useful!

It's still active, just very slow development - it's a one-person company and Duplicate Cleaner takes the most of my time up as TextCrawler has a much smaller userbase.

TextCrawler 4 is partially complete but not ready.

Which mode are you running it? Paste in the log entry for the scan - that'll have all the details.

- Possibly 'Same file name' and 'ignore copy', but I don't think it'll work in this case.

If the files are same, then you don't need to match on file names at all - just use 'same content'.

Usually on Black Friday (End of Nov) though there are some other sales occasionally.

Here's a coupon code:- DC15NOW

Is it one of the drives or just a folder? It usually means a drive is disconnected/unavailable.

It'll run on Server 2012 - you just need to make sure .NET Framework 4.7.2 or higher is installed.