I used to set up the iTune's music files (actual MP3 files) in the external HD. iTune library (the list of music you see on the iTune main window) is linked to those source files in the external. I moved those music files back to the MBP. But, the list of music listed on the iTune library shows the "!" mark indicating there is no link to the source music file. Can someone suggest the way to re-link the music file to the iTune library without resorting to re-linking each music file painstakingly. PS. When I "consolidated" the library after moving the music source files to the MBP from the external HD, I ended up with the duplicate music file (doubling the music file because of this duplication) with an extention " 1" (that is, space 1) and it was a pain in the neck to get rid of those duplicate files. I want to prevent the same fate when I doing this linking job.