I save the song's USLT data via miniLyrics which write lyrics in ID3 V2.3 field. but after change tags via mp3tag(no change of USLT),the data was encode by utf-16.
All tags are saved with the encoding chosen at "Tools > Options > Tags > Mpeg"
If you don't like utf-16 change it to ISO-8859-1
But how to change single field without dealing with others?
It's not possible, sorry.
Could it be a change request? Not to touch existing/unrelated tags? At least as an option?
If I add a Title tag and my settings are ISO-8859-1, I loose say USLT content if it was encoded UTF-16. I just wonder - both USLT and SYLT are not supported tags, but in these conditions my USLT got screwed up and stored as ISO-8859-1 questionmarks, while SYLT was not touched at all.
Luckily... as restoring USLT on some 20 records is much simpler than redoing whole synchronization - I had just done it manually with no backup
USLT is supported, that's why it gets changed.