• Support MPEG Audio (MP3), MPEG-4 iTunes (M4A), Windows Media Audio (WMA), Free Lossless Audio Codec (FLAC), Monkey’s Audio (APE), Ogg Vorbis (OGG), Musepack (MPC), WavPack (WV), OptimFROG files (OFR), Speex (SPX) and The True Audio (TTA) audio file formats.
• Support ID3v1 and ID3v2, WMA metadata, iTunes metadata, Ogg Vorbis comments and APE tags.
• Support >35 tag fields, including BMP, Compilation, Grouping, Track#, Disk#, Lyrics tags.
• Preview, edit and delete the BMP JPEG PNG attached pictures (cover art / artwork) (MP3 Layer III/WMA files only!).
• Support of adding the attached pictures for more than one folders with using templates.
• Copying of the tags from one or more audio files to other files.
• Unicode and ANSI characters in tags and filenames. You can use symbols of your national alphabet in the tags (diacritic symbols, umlauts, hieroglyphs, etc).
• Album web database wizard (freedb.org), comparison with existing tags.
• Integrated web search for lyrics.
• Auto correction of strings, symbols, and upper-lower case.
• One-click tag removal, renumbering and tag swaps.
• Change filenames based of their tagged information.
• Change tags based of filename’s path.
• Auto-replace strings at tags save and tag export.
• Filters by tag format (ID3v1 and ID3v2) and file extensions.
• Custom templates to generate filenames, tags and playlists. You can use for custom templates all supported tags (e.g. “‹Orig. Artist› – ‹Title›.mp3”).
• Generation and editing of PLS/M3U playlists.
• Quickly create PLS/M3U playlist from the folders.
• Import audio tags to TXT, CSV, XML files.
• Export information from TXT, CSV, XML files and M3U playlists using custom templates.
• One-click sorting and filtering, manual sorting mode.
• Custom copy tag to tag with advanced featuries: clear source tag, replace/append/prepend destination tag, copy the several symbols.
• Copy folder names and filenames to tags.
• Format a tag “Track #“.
• Multi-format the tags. You can add a new text to several tags at once.
• Advanced features for copying your music files. You can use templates (with tags information) at copying.
• Support your Favorite Folders.
• Search audio files dialog using file mask.
• Wizard to help add files and Actions. Freedb Wizard. Import/Export Wizard. Settings Wizard.
• Operations with folders: create, copy/move, rename and remove.
• Multi-select the folders with audio files.
• Integration with WinAmp 2.x/5.x media player and a in-built player.
• Support for drag-and-drop and hot keys.
• Intuitive multi-frame interface.
• Short visual training course.

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Please note that these all features supported in Mp3 Tag Assistant Professional (personal or business license) only! If you have Music Tag Editor or Free Mp3 Tagger please click link for read more about differences.