Should any pilot have the desire to do it, the easiest starting point is to simply mount a dash cam, that is currently available from numerous mfg's for land-bound vehicle use. Russia of course is the largest user, as evidenced by the crazy youtube videos, but they have no insurance so everyone needs to protect themselves.
A dash cam mounted overhead showing panel and out the front window would store reasonable information on the sd card, so that short of a fire or unrecoverable crash, good chance that someone could pull some video off it. Steps beyond that simply require someone to create the box, even if they are simply recording data provided by a stratus or simple onboard gps device.
As mentioned earlier, it is somewhat a catch-22 for the owner/pilot/user. As the owner/pilot, you are installing this under the guise of "helping future pilots not make the same mistake?".... but what pilot thinks they may be the one making that mistake? Somewhat a dark thought that I'll install this to help others, in case I crash and die. In the meantime, if something happens that I was just being stupid, and it's known that information is available for investigators, pleading the fifth isn't going to work. On the flip side, the information garnered could prove your innocence for doing the right thing, without the shadow of a doubt as well.
Probably the same overall reasons we don't see them too popular in state-side cars, although more and more semi-trucks are using them to help protect themselves during accident investigations.
pb
