Some new package repositories have been added to Mandriva Linux 2007 recently, so here's an article to recap all the existing ones and explain the new ones.
There are two types of software in Mandriva Linux - free / open source software, and non-free software. All the non-free packages are available to Club members from the 'Club commercial' repository. You can use the new Mirror Finder to help you add this repository for your system, after which you can use rpmdrake or urpmi to install packages from it.
http://club.mandriva.com/xwiki/bin/view/Main/2007Media