i modified them slightly to this
deb http://ftp.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.debian.org/debian/ testing main contrib non-free
deb http://ftp.debian.org/debian/ testing-updates main contrib non-free
deb-src http://ftp.debian.org/debian/ testing-updates main contrib non-free
deb http://security.debian.org/ testing/updates main contrib non-free
deb-src http://security.debian.org/ testing/updates main contrib non-free
deb http://www.deb-multimedia.org testing main non-free
deb-src http://www.deb-multimedia.org testing main non-free