These ebuilds come from http://overlays.gentoo.org.
If you have some problems, go to the official site first.
lacie-lightscribe-labeler : LaCie LightScribe Labeler 4L ( http://www.lacie.com/us/products/product.htm?pid=10803 )
lightscribe : LightScribe System Software by HP ( http://www.lightscribe.com/downloadSection/linux/ )
lightscribe-simplelabeler : LightScribe Simple Labeler by HP ( http://www.lightscribe.com/downloadSection/linux/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a wschlich-testing
For Paludis use this rsync : rsync://gentoo.zugaina.org/wschlich-testing-portage
If you have a problem : ycarus(-at-)zugaina.org