To install multimedia codecs, simply download and install the w2codecs (w64codecs for 64-bit systems) and libdvdcss2 packages.
For debian systems, these can be found at:
http://debian-multimedia.org/
Multimedia Codecs
unix-ninja : "Team Hashcat + defender of the realm + artist. CISSP, OSCP, OSCE, etc. Hack the planet. Break all the things. Thoughts are my own. Passwords are my jam."