This script applet stores the tags of the selected iTunes track (as a script property). Later, when you select another track and run the script again, it will paste the stored tags to that track. You are able to choose which tags you want stored.
(Note: In order to launch this PowerPC-era script on an Intel machine, it must first be opened and then saved using AppleScript Editor, which is located in your /Applications/Utilities/ folder. More information is here.)
Batch-reset the Start and Stop Time of selected tracks to their entire duration
Restore each selected track's artwork from an image file stored in its Album folder
Applet assists with swapping, copying, appending data between track tags
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
Change video kind and video related tags of selected video tracks
Set choice of various number tags of selected tracks incrementally