I searched the forum and the following appears to be exactly what I am looking for:
However, I was surprised to see this ability doesn't actually exist in Mp3tag.
Here is my scenario:
I have 2 sets of files from 2 identical box sets with hundreds of tracks, one lossless, the other lossy.
Each set of files has fields I'd like to keep; the lossless files have additional title info (single version, live, etc.), the lossy files have comments (Disc 1: Original Album, Disc 2: Bonus Tracks, etc.).
This is likely a fringe case, but I assumed there would be some way to do this using the normal Tag Copy/Tag Paste from one batch of files to another in the same order (which I use all the time), but it doesn't see to be available. Something like a list of checkboxes for all the existing fields in the copied tags that could pop up when you go to paste them.
There is mention of using foobar2000 for this, but I wasn't able to get that to work either (for instance, it combined all the unique comments from each file and put them in every comment field of every track). There is also mention of using Export > Import but I can't seem to get that to work either. Lastly, someone mentioned using the Extended Tags feature, but no matter what I do, nothing copied from the source files ever seems to get pasted into the destination files.
As the post I linked is from 2018, are there any other potential solutions available now?
Thank you!