can not install apache2 from ubuntu archive (needs disc instead)?

[Daniel Robitaille]

 > >> japj at pc1-japj:~$ sudo apt-get install apache2
> >> Reading Package Lists... Done
> >> Building Dependency Tree... Done
> >> The following extra packages will be installed:
> >>   apache2-common apache2-mpm-worker apache2-utils openssl ssl-cert
> >> Suggested packages:
> >>   lynx www-browser ca-certificates
> >> The following NEW packages will be installed:
> >>   apache2 apache2-common apache2-mpm-worker apache2-utils openssl
> >>   ssl-cert
> >> 0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
> >> Need to get 33.0kB/2018kB of archives.
> >> After unpacking 6246kB of additional disk space will be used.
> >> Do you want to continue? [Y/n]
> >> Media Change: Please insert the disc labelled
> >>  'Ubuntu 5.04 _Hoary Hedgehog_ - Alpha i386 Binary-1 (20050303)'
> >> in the drive '/cdrom/' and press enter
> >>
> >> I tried installing other packages without any problems (from the
> >> internet). What am I doing wrong here?

what's the content of your /etc/apt/sources.list file?