I have upgraded recently to Itunes 10.4. In the past when I wanted to add new files to my library I needed to drag the folder with mp3 onto Itunes icon on the dock ( I store my mp3s on external hdd ). Now it appears that it is adding files that way, but it also creates playlist for every seperate folder with mp3s. So for example, I have 200 mp3 albums in seperate folders and by adding mp3s I am getting also 200 new playlists on left side panel. How to avoid that?