Black boxes of mh-370 are found and downloaded for analysis. >> we'll pull the data up on the screen and we'll see the data in's tabular format and graphical format. >> we connected the record tore a power supply. >> reporter: they contain parameters about the flight movement, pilot maneuvers, speed and altitude all displayed with a series of graphs. >> every flight data recorder records the data in binary values. it's a series of ones and zeros. in order for humans to understand that we need to convert it into engineering units and engineering unit it is simply mean feet for altitude and airs...