Itunes help please!!! 10 points!?

Alright, i got a new computer yesterday and transferred the music from my ipod to my new computer to Itunes. But when i saved a music folder with all my ipod music to put it onto my itunes all a lot of the song come up as folder names and not song names. For example - one of the songs are listed as " HFDG" what i want to know is there a place I can go or thing I can do to rename all the songs instead of by hand? 10 points!!!!!!