# /etc/apt/sources.list

deb file:/mnt/debian-cd1/ etch contrib main
deb file:/mnt/debian-cd2/ etch contrib main
deb file:/mnt/debian-cd3/ etch contrib main

deb cdrom:[Debian GNU/Linux 4.0 r1 _Etch_ - Official i386 DVD Binary-1 20070819-11:33]/ etch contrib main
deb cdrom:[Debian GNU/Linux 4.0 r1 _Etch_ - Official i386 DVD Binary-2 20070819-11:33]/ etch contrib main
deb cdrom:[Debian GNU/Linux 4.0 r1 _Etch_ - Official i386 DVD Binary-3 20070819-11:33]/ etch contrib main

deb http://security.debian.org/ etch/updates main contrib
deb-src http://security.debian.org/ etch/updates main contrib