Local video and audio?

I notice that it is possible to get Firefox running as a local 
application on the PXES desktop.  Would it be feasible to also run 
Mplayer locally?  Is there a howto on what is involved with getting apps 
to run locally?  I really need my users to have the ability to run some 
multimedia.  Has anybody done this?

Thanks,
Casey Woods
Calgary Alberta


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