I have been using Mp3tag for Windows for years, and I love it. One feature that I find essential is user-defined field mappings, which allow me to write equivalent tags across multiple file types using a single tag field (e.g. map "DATE" to "YEAR" for flac files, and use the tag entry field "YEAR").
Lately I'm trying to port over my tagging workflow to Mac, so I purchased mp3Tag for Mac this morning. However, I can't find this feature, which prevents me from using the application. Am I missing something, or Is this feature currently under development?
many thanks for your feedback and for supporting my work! The mapping feature is not yet included in Mp3tag for Mac. However, there are some default mappings for VorbisComments in action, namely
DATE → YEAR
ORGANIZATION → PUBLISHER
TRACKNUMBER → TRACK
Does this already solve the issue for you, or are you looking for different mappings?
BTW, through much trial and error, I found that these are the mappings that will work across mp3, dsf, m4a and flac files in both Mp3tag and JRiver Media Center 28.