I have many compilation albums ripped from my CDs. I rip to FLAC and Apple Lossless. For sorting and display purposes on my DLNA devices, I try to keep the year of each individual track in the YEAR field. (Some will suggest keeping the individual year data in other fields, but that won't work for me.)
I take the time to manually enter each track's year into either the FLAC or ALAC version of the files, and I'd like to be able to copy the %year% value from the group of FLAC (or ALAC) files to the other group of FLAC (or ALAC) files.
I can do Tag Copy/Tag Paste, but that replaces the entire tag, and in some cases I don't want the extended tags of FLAC versions to get overwritten with the extended tags of ALAC versions, or vice-versa.
I tried Exporting to a tag .txt file and then importing the YEAR field, but mp3tag copied the entire contents of the text file into the YEAR field of each track.
I've searched the forum, and there are actions that work well to copy or replace from one field to another in a single group of files, but not to copy or replace between groups of files. Does anyone have any ideas?