S.T.A.L.K.E.R.: Call of Chernobyl Official Theme now has a 40+ seconds sequence as a main menu background replacer. Preview is just a small sequence, not the entire background length.
S.T.A.L.K.E.R.: Call of Chernobyl Official Theme now has a 40+ seconds sequence as a main menu background replacer. Is long, file is large and quality is not very good. That's because the original video is 720p and the main menu sequence supposed to be 1080p. It can be changed to use the 720p version, but changing cfg files is also necessary, and i don't really want to update it every time a new update for CoC is available.
Also, is black, so you'll have to wait for the lightnings to see the version of CoC you got installed :P and sometimes, you'll encounter some pixelated image/tearing/lines/black and white stuff in background when lightnings occur. That is probably because of video quality/complexity, file size and/or engine rendering. Original background menus are mostly a few mb, not 30 like this one. Use it if you want, you can delete the file and use the original again.
To install, copy gamedata folder from the archive over your gamedata folder inside you CoC installation folder.