--debug, -d

Print updated tags

--dry-run, -p

Do not actually modify files

--encoding, -e

Convert from this encoding. By default, your locale's default encoding is used.

--force-v1

Use an ID3v1 tag even if an ID3v2 tag is present

--quiet, -q

Only output errors

--remove-v1

Remove any ID3v1 tag after processing the files

Based on id3iconv (http://www.cs.berkeley.edu/~zf/id3iconv/) by Feng Zhou.