An app that fixes metadata like a boss!
Metadatics is an advanced and robust audio metadata editor. The tool helps edit common types of audio files, which includes MP3, AIFF, M4A, APE, FLAC, WMA, and OGG. You can look up meta information from sources online, rename files using the metadata, or modify metadata with the help of several built-in functions. For instance, you can replace text, remove letters from the end or beginning of a tag, create number sequences and copy between tags, among others. In short, Metadatics offers all you require to easily edit metadata. The program supports batch editing too.