getting the information off is good. >> yes, we've been able to recover the information from the recorders we've received. >> reporter: he's a measured, cautious man, prerequisites for a job that includes not just knowledge, but patience, lots of patience. >> we obtain a raw data file, which contains just ones and zeros. >> reporter: the boxes contain a wealth of information, up to 2,000 separate pieces from the data recorder alone. high technology built into a waterproof, fireproof, shockproof shell. at the end of this complex chain of information and analysis can be this, an animated representation of the tragedy. this one from a 2010 training flight, two dead after a simulated engine failure went wrong. >> a lot of the symmetry, which couldn't be controlled, and the aircraft ended up impacting the terrain, unfortunately. >> you were able to recreate this thing from the black boxes. >> that's right. this is based on flight data