The BEA have added a link to English subtitles text that matches the commentary on their previously released video of the Recife press conference.
http://www.bea.aero/en/enquetes/flig...es.navires.srt
This now confirms that the search area is between 2,000m^2 and 3,000m^2, and hopefully the next update will give some indication of the actual grid pattern they are using in the search, e.g. is the search being conducted along 350/170T degree lines matching the general line of the ridges and valleys.
mm43