Topic: "Video coding" - and who generally is engaged in it? Usefulness of this operation for the house "normal" user. Sociological .
Here I do not know any person who "encodes" (well that is converts from one format in another) video.
In a network is any film from the original to any , 320*200, with subtitles, on a heap of languages.
And what for there something to encode? Finished shooting, looked, saved. All.