Extract Tags from Filenames
mp3Tag was designed to edit tags and to organize MP3, WMA, WAV, FLAC, APE, OGG Vorbis, AAC, WavPack, MPC/MPP/MP+, and M4a/MP4 files. It can handle thousands audio files at once. This is especially reasonable, if you tag your files from a database, or generate tags from filenames.
To use the latter method, select the files that you want to tag. Then click "Generate tags" on the right:

This will open a new window.

Take a look at the left upper corner of the window. You can see that tags will be generated from filenames (the second dropdown list), and right above it - a field with strange symbols.
This is the most powerful thing of mp3Tag, the format string. We discuss it separately. Enter an appropriate format sting here, or select it from the dropdown list. Most popular formats are predefined.
Now let's take a look at the right pane.
"Fields from tags" - defines what to do with the existing tags. You can choose to overwrite the existing tags, to overwrite only empty fields, or to do nothing.
Below are eight fields that you can check or uncheck. Only checked fields will be overwritten. If you want to overwrite only one field (for example, track #), simply uncheck all the others.
Finally, click "Generate tags" to write generated tags to the files.

