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