These ebuilds come from http://gentoo.zugaina.org/.
If you have some problems, go to the official site first.
cdrtools : A set of tools for CD/DVD reading and recording, including cdrecord ( http://cdrecord.berlios.de/ )
mixmaker : MixMaker is a GTK2/Gnome audio cd burning application. ( http://mixmaker.forge.trilug.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org