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.)
Enter text for the selected tracks' Category tag
Apply selected CD's CD Text to its disc and track tags
Display, create text file listing info of dead tracks
App displays files in iTunes Media folder which are not in iTunes library
Remove iTunes tracks disassociated from files
Parse Song Names and reassign the parts to other tags