Our website provided a free download of HiRate 1.0 for Mac. The software is categorized as Audio & Video Tools.
From the developer:
Hidden functionality is built into iTunes that allows songs to be rated on a scale of 0 to 100 instead of just 0 to 5. In fact, a * rating is really 20, a ** rating is really 40, a *** rating is really 60, a **** rating is really 80, and a ***** rating is really 100.
With HiRate, you can take advantage of this functionality to improve your iTunes ratings.