hi;
When I am trying to update by
Code:
apt-get update
command, or I wanna to install some new app, I get this message:

...
Ign http://http.kali.org kali/non-free Translation-en_US
Ign http://http.kali.org kali/non-free Translation-en
W: Failed to fetch cdrom://[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot amd64 LIVE/INSTALL Binary 20140108-17:05]/dists/kali/contrib/binary-amd64/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot amd64 LIVE/INSTALL Binary 20140108-17:05]/dists/kali/main/binary-amd64/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot amd64 LIVE/INSTALL Binary 20140108-17:05]/dists/kali/non-free/binary-amd64/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs

E: Some index files failed to download. They have been ignored, or old ones used instead.

What should I have to do to resolve this problem ???
Thank you!