To verify that your /etc/fstab line is correct you should mount using
it instead of doing all of it above.
# umount /media/dvd-mountpoint1
# mount /media/dvd-mountpoint1
deb file:/media/dvd-mountpoint1 wheezy main contrib
Agreed. Try it again with the above. I just tried it on my system to
> > 2) Comment out anything else in sources.list.
> >
> > 3) Run apt-get update.
test it.