Apparently, life isn't such a peach as we'd like it to be. While installing Extra Decoders Support enabled the Media Player to play a few additional formats, FLV is still not working. Is there another package that it relies on (the word "container" confuses me, as if there should be something else to put into this container)?

Please, comment on possible reasons for FLV not to work with Extra Decoders Support installed. I already uninstalled it and installed it. No dice. Then I uninstalled it and installed the one from Extras-Testing. Still no dice. Mplayer made a faint attempt to play FLV but recognized by far not all FLV files I had and could normally play only one. Mplayer is gone now.

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Added an hour later:
My bad, it doesn't play WMV either. Extra Decoders Support claims that, doesn't it?