MediaMonkey will help you manage and play very large music collections, consisting of a variety music formats (MP3, WMA, AAC/M4A/M4P, OGG, APE, FLAC, MPC, VQF, WAV files) and/or audio CDs. MediaMonkey gives you a very capable, yet nimble tool to organize, tag, create playlists, rename files, convert file formats, sync, level volume, etc.
The standard version of MediaMonkey includes much of the functionality the average user will need, while the Gold version adds several improvements for the serious collector.
Site : http://www.mediamonkey.com
System Requirements : Win 2000/XP/Vista
License : Freeware (Standard Edition)