UnDelete is used to add any backed up deleted files back to iTunes. To enabled backing up deleted files
see this section on using the Preferences. The UnDelete menu provides for viewing, removing, and undeleting files.
View Backup Deleted Files - shows all the backed up deleted files.
UnDelete Specific - used to undelete a specific backed up deleted file. A list of all the backed up deleted files is display from which one or more files can be
undeletedselected to undelete and added back to iTunes.
UnDelete All - used to undelete all the backed up deleted files.
Remove All Backup Deleted Files - used to remove all the backed up deleted files.