Not really an observation more of a short help note..
And yes I believe the move to this forum thread was good as other distro users are more likely to see it.
It was inspired by post mostly from new linux users who where having trouble with media formats both local and on line. I read ppls replies to these but some still had issues so I decided to test and experiment. Since I don't use or care much about media players working on my linux systems They had not been installed nor configured. So a download or 2, and installs I discovered a thing or two.
One of which was the above use of the mplayer essentials package (codecs) with other players.
Another I did not write about was that certain websites refuse to play their content (the text is a bit wack in mozilla so I assume they are IE only sites). Also it is likely for certain site media content on would have to point mozilla to the correct "helper" app to open the content.
Linux will play all most every media format that I could find (problem with midi files I have no midi seqer loaded) (certain tracker mods, no program loaded) (some windows based .wav, windows).
Also another reason i needed to tweak up media for linux... My husband who recently converted to linux for security and speed (he "views" LOTS of websites)...