For my media server, I am looking for ways to transfer tags from my FLAC files to MP3.
In a bash script, I can extract tags using metaflac to local vars, but when tagging mp3 with id3v2, I seem to lose national characters (guess it must be unicode?)
Also I need to be able to set replay gain tags, and album art (all present in the FLAC's).
I am looking for a scripted solution to run unattended.
Try this tool eyed3. It supports album art embedding, text encoding in latin1, utf8, utf16-BE and utf16-LE. However the replay gain is not supported. As far as I understand it is not widely supported.