Hi Matt, Craig et al; > > Thus I think you should be almost good to go - perhaps an application > adjustment for the file types within Firefox - about:config as Matt > suggested > Thanks. Got everything working. How come Firefox doesn't just let me turn a plugin off rather than deleting it? (a rhetorical question, no answer needed yet) I still get popup and other little things to fix or change. I can probably find answers in the documentation on MPlayer site. ... speaking of which, I have checked TLDP and Wikipedia, and googled etc. and cannot find a site/manual that "explains* video media or multimedia. All sites seem to be trivial or strictly "Howto". This is a subject that I have ducked for three years because I was learning other computer processes, but would now like to "climb into". Does anybody know of a site that explains the whole audio/video process from "here is a series of pictures that show motion"; to frames; to encoding; to compression; to transmittal; to reception; to decoding; codecs; to backends (Mplayer, totem and friends); to front end GUIs. Right now I am looking at a two or three day process of cutting and pasting together, from various locations, my own manual; unless someone has a better option. Such a process by me is guaranteed to be full of mis-assumptions and missed info. -- Regards Bill