deb http://debian.uchicago.edu/debian/ etch main contrib non-free  
deb-src http://debian.uchicago.edu/debian/ etch main contrib non-free  
#rox
# deb ftp://ftp.berlios.de/pub/rox4debian/ binary/ 

deb http://security.debian.org/ etch/updates main contrib  
deb-src http://security.debian.org/ etch/updates main contrib  
#opera
deb http://deb.opera.com/opera/ etch non-free  
#marillat
deb http://mirror.home-dn.net/debian-multimedia/ etch main 
deb-src http://mirror.home-dn.net/debian-multimedia/ etch main