That's not a fake video, it is very real and is representative of the kind of conditions that frequently are found in the southern ocean.
Good footage of heavy sea conditions are hard to capture, that's some outstanding footage. Who cares where it was filmed?
That said, the seas in the search area haven't quite reached that state yet.
While the video itself is real, it is clearly a misrepresentation of the circumstances surrounding the search, and when people make comments like "the view from the bridge of a search vessel", you know we have reached information BS at high levels.
This video is representative of conditions in the North Atlantic in Jan, 2013. Please spare us your attempts to show this is representative of the crash zone. It adds no information to an already confused situation.
PS: Google "heavy seas". Then click on "videos". Lots of 'footage' of high seas in many different circumstances. You want to post 50 or 100 of them as being "representative" as well?