Ubuntu 9.04 DVD player codec

I just replace my ubuntu 8.04 with version 9.04. as ususal problem with decode for DVD player it not automatically included (legal problem).
So,we can resolve this matter just go to link:

https://help.ubuntu.com/community/RestrictedFormats/

Ubuntu can play the most popular non-free media formats, including DVD, MP3, Quicktime, Windows Media, and more by following the instructions below. If this seems like unnecessary work, remember that Ubuntu is a distribution of free software and these packages are (at least arguably) affected by patents and license restrictions in some countries. Avoid formats suppressed by DRM (Digital Rights Management, or Digital Restrictions Management), as they are often unplayable.

Just follow the instrcution what they said:

Playing Restricted Formats

Follow these steps to play and record most common multimedia formats, including MP3, DVD, Flash, Quicktime, WMA and WMV, including both standalone files and content embedded in web pages.

Ubuntu 9.04, 8.10, 8.04 and 7.10

Synaptic

• Go to Applications → Add/Remove...

• Set Show: to All available applications

• Search for ubuntu-restricted-extras and install it. Note that there is also xubuntu-restricted-extras (for Xubuntu) and kubuntu-restricted-extras (for Kubuntu.)

It's not work for me, so I try another way

Open the Terminal, and execute the following command:

sudo apt-get install ubuntu-restricted-extras

it will be install everything we need more than 40 Megs, and be patient

Enjoy your movie