This script will reset the Start and (optionally) the Stop Time of the selected tracks--or all the tracks of the selected playlist--to "0:00" and (optionally) their entire duration, respectively.
You might also be interested in Batch Trim Start or Stop Time (Seconds).
Choose to reset the tracks Start Time to 0:00 and, optionally, the Stop Time to the full duration of the track
Resample selected tracks' artwork to user-set size limit
Append user-entered text to beginning or ending of selected tag of each selected track
Capitalize the first letter of each word in selected track names
App displays files in iTunes Media folder which are not in iTunes library
Exports and then re-imports selected tracks' artwork
Display, create text file listing info of dead tracks