Hello!
I have just installed mp3tag, after seeing lots of great comments and reviews about it 
Now I'm ready to use it and I have a newbie question. I have never used anything to assign tags to music, until about ten minutes ago. Until about a week ago, I'd never even heard of an ID tag.
So please have mercy. I'm as newbie as you can get, and I will need very clear and simple directions.
I'm in the process of digitizing lots and lots of old cassette recordings, and will move on to vinyl soon. I have already put the cassette recordings on my hard drive and I'm converting the sound files to mp3. Now, since these files were originally analog, they have no ID tags at all. I had to start from scratch entering the album, artist, title, etc.
I've already gone through the process of typing all that in for three songs. Then I remembered something I've seen about taggers, looking up tag information on Amazon and MusicBrainz. Is there any way to do that, not just to correct tags --but to assign the information from scratch?
If I put in the album for example, could it possibly give me track information and fill in those fields for me? Ohhhh, I really hope so!
If so, how do I use it? Please, I need step by step, Taggers for Dummies instructions!
thanks!
And another question:
When I saved these sound files I gave them a filename with the song title. Then I put each song file into a folder with the name of the artist and album. As I gather more and more music onto my computer, I can see I'm going to have to put these album folders into more and more nested folders just to keep them organized. That's going to make for reeeeeally long file names. Not good.
Now I imagine the ID tag should take care of that, so it shouldn't be so complicated. How do I rename the filenames? And if I do change the filenames, would I have to redo the tagging all over again, because the tags are assigned to specific filenames ?? Oh no ...!
I can't imagine how to do it otherwise, because I need those long filenames so I can find the sound files --before I can assign tags to them.
I'm sure there's a much more simple way to do this, I just don't know what it is. Help! 
Moderation: Removed full quote of previous post.
I had to do the same thing with my own vinyl and cassettes. I organised my folders under "My Music" then a folder for each album (assuming you are converting LP's).
Each song is a file within that folder. Call the file "song title - artist.mp3"
You can then tag the file from the filename in Mp3tag and add the album artwork, album title, year etc by selecting all the files in a folder (ie an LP at a time).
One word of advice - and this is REALLY IMPORTANT.
BACK UP YOUR DATA - I kept putting it off and finally my drive went bang and I lost hours and hours of work