Mp3Tag is a comprehensive audio-file tag management solution. I’ve been using this software for more than 2 years, during which time I have also tried and used other similar shareware and commerical programs, and I can honsestly say that Mp3Tag is the clear choice for this type of software. And its 100% free.
What I really like about Mp3Tag is that it can be launched through the context menu; right click on a folder with MP3′s and it will list all the audio files within the folder as well as any sub folders recursively. This enables you to work with a large number of files at once, but just those that you want to work with.
Mp3Tag provides all the basic tag and filename editing features that you would expect plus more. Some of the more useful fucntions: tag-to-filename, filename-to-tag, field find-and-replace, tags from text file, autonumbering for track field, playlist creation, importing (and exporting) cover art to/from file, and obtaining tag info from web resources (freedb, Amazon, and Discogs).
For this last one (getting file info online), I found that doing a search on Amazon and Discogs from within Mp3Tag worked pretty well, and it was easy to obtain and implement the information that I needed. I didn’t seem to have much luck with Freedb, however (perhaps it is designed to ‘read’ and obtain info by referencing an actual physical cd? Not sure).
A really nice feature for working with a large number of files is the filtering box towards the bottom of the screen. It allows you to filter your view by the field of your choice (say, all files of a certain genre, or all files by a certain artist, etc.), so that you can work with only the files that you need.
Mp3Tag supports ID3v1-ID3v2.4 and APEv2 tags and a plethora of audio formats, including aac, flac, ape, mp3, itunes formats (mp4, m4a, m4b), mp3, ogg, ofr, ofs, spx, tta, wma, and wv.
This program is a winner; I highly recommend it.
Version tested: 2.36