deb http://archive.ubuntu.com/ubuntu/ dapper main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ dapper-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ dapper-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu dapper-backports main universe multiverse restricted
deb http://packages.freecontrib.org/ubuntu/plf/ dapper free non-free
deb-src http://packages.freecontrib.org/ubuntu/plf/ dapper free non-free