AudioGrail (Formerly K-MP3) is the swiss army knife for everthing that is related to audio files (MP3, MPC, OGG...). It can very easily rename and tag (tag: info such as artist name, album, track title) your files automatically. It can also analyse quality, organize files on your system, find duplicated files and improve your everydays audio experience !

AudioGrail features ...
Supports : MP3, OGG, MPC, APE, AAC, FLAC and WavPack files.
Automatically Albums Ranaming & Tagging (ID3Tag V1 & V2 tags, Vorbis (Ogg) comments and APEv2 tags are supported) Powered by FreeDB. 
One-by-one tag editor with queue (for multiple files edition).
Audio files To Audio CD burning capabilities.
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 & 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 !

Home Page - http://www.kcsoftwares.com/index.php?kmp3