having a file renaming issue, help?

I'm trying to rename a font (.ttf) file. After renaming and installing the font, it displays as "New" in Font Book, not showing the name I typed in. Also in "get info" it says the file's "full name" is New. How do I change the full name? as opposed to the display name I seem to be changing? Here's a screenie of the get info window to show you what I mean:

It's not a big deal, but it's really annoying me