AudioGrail

AudioGrail (Formerly K-MP3) is the best solution for work with audiofiles, such as MP3, OGG, MPC etc.). Rename and tag your files (add artist name, album, title etc.) automatically. The program can organize files on your system, analyse their quality, find duplicates, and improve your audio experience.
Features:

Supports: MP3, OGG, MPC, APE, AAC, FLAC and WavPack files.
Supports: ID3Tag V1 and V2 tags, Vorbis (Ogg) comments and APEv2 tags.
Automatic Albums Ranaming and Tagging.
Automatic Song Identification and tagging.
Automatic finds albums covers.
One-by-one tag editor with queue (for multiple files edition).
Audio files To Audio CD burning capabilities (requires CopyToDVD).
Files Names Normalizer (Case Standardization).
Tags Normalizer (Case Standardization).
Mass Tags Remover.
Files Organizer (Mass Tag To Name/ Move To Folder).
Duplicate Files Finder.
Playlist Creator and Analyser (supported formats: m3u, pls, xpl).
Files Lister (supported formats: Raw listing, Coma Separated Values, SQL, XML).
Incomplete Tags Finder.
Quality Analyser.
Internationalization support.
And much more!