These ebuilds come from https://github.com/BlueDragonX/fm-overlay.
If you have some problems, go to the official site first.
rubyripper : A secure audio ripper for Linux ( http://code.google.com/p/rubyripper )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a fm-overlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/fm-overlay-portage
If you have a problem : ycarus(-at-)zugaina.org