emissions from the missing plane's black boxes. what happens if and when they're located? >> crash-protected and shock-mounted. >> this is what investigators will see once the black boxes for mh370 are found and data from the memory downloaded for analysis. >> we'll see the data in a tabular format and graph cal format. >> black boxes contain hundreds of data points or parameters about the flight's movement, floot maneuvers, speed and altitude, all displayed with a series of graphs. >> it records the data in binary values, a series of ones and zeros. in order for humans to understand that, we need to convert it into engineer units. that simply means feet for altitude, air speed is recorded in knots. >> it's through graphs like these, that we'll learn if someone on board deliberately