We all know about the black box in aircrafts. Its been there for many years and little have changed about how it works. Whatever that has changed is only how you store the data, and what data is stored. Little has changed on how the black box is handled in times of crises - like a crash, emergency landing on water etc etc.
We all know that Navy aircrafts use the ejectable black boxes. The same should be implemented in commercial aircrafts too.
Most of the times, during emergency, accidents pilots look for a water body to land/crash land the aircraft. The blackbox should be implemented in such a way that when it comes in contact with water (for let's say more than an hour), there should be mechanism built into the blackbox to non-destructively explode and cucoon itself inside a floatable, pressure proof, balloon, brightly colored and float on water as buoys. That way it is easier to retrieve the blackbox in a much quicker time than what is done today.
Just a thought.......