I am not sure if this is a problem with MP3tag v2.39 or Amazon, but when I use Amazon.com as a Tag Source it changes the name of the song.
Here is what I do:
I put the album name in.
I click the correct artist.
I click on the correct song.
Then I click OK.
For some reason it changes the name of the song.
(I mostly use Amazon.com as a tag source to get album covers).
Can anyone help me?