Features:

• scan selected directories or entire disks to locate your mp3-files;
• supports ID3v1 and ID3v2 tags;
• switch all tags to ID3v1 or ID3v2;
• switches from ID3V1 to ID3v2 when needed;
• spreadsheet-like interface to view/edit tags;
• color-coded indication of tag-type;
• auto-rename your mp3-files based on the information found in their tag
• auto-fill the tags of all files of an album
• bulk-modify selected fields in all files at once