apt-cache policy htpc

$ apt-cache policy
Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://ftp.ch.debian.org/debian/ squeeze-updates/non-free amd64 Packages
     release o=Debian,a=stable-updates,n=squeeze-updates,l=Debian,c=non-free
     origin ftp.ch.debian.org
 500 http://ftp.ch.debian.org/debian/ squeeze-updates/contrib amd64 Packages
     release o=Debian,a=stable-updates,n=squeeze-updates,l=Debian,c=contrib
     origin ftp.ch.debian.org
 500 http://ftp.ch.debian.org/debian/ squeeze-updates/main amd64 Packages
     release o=Debian,a=stable-updates,n=squeeze-updates,l=Debian,c=main
     origin ftp.ch.debian.org
 500 http://security.debian.org/ squeeze/updates/non-free amd64 Packages
     release v=6.0,o=Debian,a=stable,n=squeeze,l=Debian-Security,c=non-free
     origin security.debian.org
 500 http://security.debian.org/ squeeze/updates/contrib amd64 Packages
     release v=6.0,o=Debian,a=stable,n=squeeze,l=Debian-Security,c=contrib
     origin security.debian.org
 500 http://security.debian.org/ squeeze/updates/main amd64 Packages
     release v=6.0,o=Debian,a=stable,n=squeeze,l=Debian-Security,c=main
     origin security.debian.org
 500 http://ftp.ch.debian.org/debian/ squeeze/non-free amd64 Packages
     release v=6.0.3,o=Debian,a=stable,n=squeeze,l=Debian,c=non-free
     origin ftp.ch.debian.org
 500 http://ftp.ch.debian.org/debian/ squeeze/contrib amd64 Packages
     release v=6.0.3,o=Debian,a=stable,n=squeeze,l=Debian,c=contrib
     origin ftp.ch.debian.org
 500 http://ftp.ch.debian.org/debian/ squeeze/main amd64 Packages
     release v=6.0.3,o=Debian,a=stable,n=squeeze,l=Debian,c=main
     origin ftp.ch.debian.org
 500 http://www.debian-multimedia.org/ squeeze/non-free amd64 Packages
     release v=6.0,o=Unofficial Multimedia Packages,a=stable,n=squeeze,l=Unofficial Multimedia Packages,c=non-free
     origin www.debian-multimedia.org
 500 http://www.debian-multimedia.org/ squeeze/main amd64 Packages
     release v=6.0,o=Unofficial Multimedia Packages,a=stable,n=squeeze,l=Unofficial Multimedia Packages,c=main
     origin www.debian-multimedia.org
 100 http://backports.debian.org/debian-backports/ squeeze-backports/main amd64 Packages
     release o=Debian Backports,a=squeeze-backports,n=squeeze-backports,l=Debian Backports,c=main
     origin backports.debian.org
Pinned packages: