trying to burn a dvd
 

iam trying to burn a dvd and i keep get a message that tells me i need a mplex (GStreamer) and i can not find the one i need to make my burner work

We need more information:
What type of DVD do you try to burn?
Which burning software do you use on which version of which distro?
What is the exact error-message?

Please install the following manually and try again: mplex (GStreamer plugin)

And the rest of the information?

6.0.6 brasero and i am trying to my old vhs home movies to dvd so that we still can view them
iam useing debin 64 squeeze

Install the gstreamer plugin packages and try again:Keep in mind that you need to be root when launching that command.

trying to enable multivers and to gstreamer shpuld work but i do not know how

There is no Multiverse on Debian, Debian is not Ubuntu. Use the Synaptic package manager to enable the non-free repositories, then use Synaptic to install the GStreamer packages or launch the command I posted earlier.