thanks, playing dat files fine now. installed gstreamer plugins and totem back by following commands:
Code:
sariq@ubuntu:~$ sudo apt-get install gstreamer0.10-plugins-ugly
sariq@ubuntu:~$ sudo apt-get install gstreamer0.10-plugins-ugly-multiverse
sariq@ubuntu:~$ sudo apt-get install gstreamer0.10-plugins-bad
sariq@ubuntu:~$ sudo apt-get install gstreamer0.10-plugins-bad-multiverse
sariq@ubuntu:~$ sudo apt-get install gstreamer0.10-ffmpeg
sariq@ubuntu:~$ sudo apt-get install totem