[ubuntu-in] can't play video in ubuntu 9.10

[Ramnarayan.K]

On Sun, Aug 15, 2010 at 7:03 PM, Sambit Bikas Pal
<sambitbikaspal at gmail.com> wrote:
>
> Try installing the package ubuntu-restricted-extras
> That should install most of the codecs required to play A/V files.
> Also install VLC and check if vlc can play the dat file.
>
why not try and add mediubuntu to your repos and then install various
media codecs - sometimes in the basic Ubuntu install its very
difficult to get all the basic codecs and stuff right

see
http://medibuntu.org/

and add repos using this

Adding the Repository
https://mail.google.com/mail/?shva=1#inbox/12a709215ba1fa11

The following bash command adds Medibuntu's repository to Ubuntu. It
also adds Medibuntu's GPG key to your keyring, which is needed to
authenticate the Medibuntu packages.

      This command should be run in the Terminal (Applications →
Accessories → Terminal):

      sudo wget
--output-document=/etc/apt/sources.list.d/medibuntu.list
http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list &&
sudo apt-get --quiet update && sudo apt-get --yes --quiet
--allow-unauthenticated install medibuntu-keyring && sudo apt-get
--quiet update

Medibuntu's repository is deactivated by upgrading to a newer Ubuntu
release, so you should run this command again after the release
upgrade.

You may also wish to add the following packages. The first will cause
many apps from the Medibuntu repository to appear in Ubuntu Software
Center (Ubuntu 9.10+) or Add/Remove Applications (versions prior to
9.10). The second will allow users to generate crash reports against
Medibuntu packages and submit them to the Medibuntu bugtracker.

sudo apt-get --yes install app-install-data-medibuntu apport-hooks-medibuntu

Please note you may have to use --force-yes instead of --yes in order
for this command to succeed.
am in danger of getting flamed here however still here goes

***
also see other parts of the documentation to know what you need to install.

Remember some of these software are not totally free - so if you are a
totally free fan this may not be for you.

ram