ipod to itunes

What's the best program to use to transfer my music, playlists, etc. from my iPod to iTunes?

There is a program called Music rescue, its a free trial so it keeps popping up an annoying message, what i did is uas a program like cakepub3/Mzbot to automatically click the ok message nd jus leave it running, bu im sure a keygen would be just as easy!