AFAIK you have to load the files,
set the tag options to write ID3V2.3 tags
select the files
and save the tags again, e.g. with
⌘ S Save
If you have a column that shows _TAG then that should change to V2.3
AFAIK you have to load the files,
set the tag options to write ID3V2.3 tags
select the files
and save the tags again, e.g. with
⌘ S Save
If you have a column that shows _TAG then that should change to V2.3