Hello friends, I am trying to restore my all the library and I am currently trying to do it artist by artist for the reason that the difficulty of several files being randomly left behind although the file format is okay. There are the some of my albums that is unable to add to the iTunes application. I am very easily been able to click to the File, and can add to library and choose the songs but they are not get added. These songs are in MP3 music format. I can also open the songs in finder and snap Get Info and it will play the preview. Any ideas?