MP3 Rectifier is an ID3 tag editor which lets you describe your MP3s with cover art and text such as artist name, album, title, and track number (using ID3v2.4 as well as older versions of ID3). It can also rename the MP3s according to these tags.
Additional features include exporting playlists and XML files, extracting embedded pictures and cover art, as well as retrieving song information from the MP3 file name using regular expressions.
Among the many features of MP3 Rectifier are:
Edit the ID3v2 (2.3 & 2.4) and ID3v1.1 tags of multiple files at once
Add pictures to MP3s
Extract and save pictures embedded in MP3s
Unicode support (including UTF-8 for ID3v2.4)
Recurse subdirectories support
Rename files based on ID3 tags
Generate ID3 tags with the use of regular expressions
Export playlists (M3U and PLS) and XML
The license of this software is Free Trial Software, the price is $14.99, you can free download and get a free trial.