[Aminifu]

You could use the forum search feature to look-up and try what others have done, but what works for them still may not work for you.

Mp3Tag will auto-tag from internet-based databases, like Amazon, discogs, freedb, MusicBrainz, and more. You need to read it's documentation on how to do this. You would still need to check the results (which is a manual process), since no auto-tagging is perfect.

Proper tagging is a time consuming process, but worth the effort. It let's Winamp's file management features really shine.