1. Sometimes I want to keep the same song in different formats.
For example, files "asdf.mp3" and "asdf.wma" are listed as duplicates. I want a way to say that I don't consider files duplicates because they only differ in file type.
2. I have several file types, .ape, .mp3, .wma, .m4a, etc. I want to include just some types in the comparison.
For example, I'm on a campaign to remove .ape and .m4a files from my collection by converting them to .wma files. I want to remove all my .ape/.m4a files that are already converted (or very similar) to .wma so I don't have to convert them again.
I also want to ignore all other file types (than .ape/.m4a/.wma) as they are a project for another day.
3. Perhaps on the Folders tab, you could add a filter for
file types to be included,
file types to be excluded
and a check box to "compare/don't compare" differing file types.
This would solve problems 1) and 2).
4. And while we're talking about filters, how about "<tag>" contains/omits "<text>" and/or ...
And add a couple of fields to the list of tags, like "path", "file name", "full path".
In the interim, I'd be happy just to select based on just a partial match in the full path name.