If we add a video recorder in the cockpit to complete FDR/CVR, will we add a blackbox? The introduction of a video recorder in addition to the current audio and flights parameters recorders used for crash investigation (CVR and FDR) is suggested by this article (published in the New York Times in 2004) citing officials of the National Transportation Safety Board, and called image recorder in a most wanted list (published in 2012) of the FAA.
Those two references shows the introduction of a video recorder is taken seriously. I don't want to debate whether this is usefull neither what should be recorded (wide angle of the whole cockpit, close view of switches and screens, black &amp; white or color, ...).

Given the answers of this questions, the video track record's requirements should be very close to the one of the CVR, thus adding this track to the CVR seems reasonable.

If we add this video track to all tracks recorded by blackboxes, will this records to an existing blackbox (either the FDR or the CVR) or will we create a dedicated blackbox (resulting in three blackboxes)?



related questions : 


Why could increases in cockpit voice and image recording potentially raise privacy concerns?
Why doesn't the black box also record video?
Before answering, let's look at these terms:

FDR - Flight Data Recorder

FDRs record all flight data, every button pressed, every control input etc. They record throughout the duration of the flight.

CVR - Cockpit Voice Recorder

CVRs record all voice communications through the radios and the chat pilots have between themselves. They record only the last 30-120 minutes.

So what benefit will adding a camera bring?

After an accident (God forbid) the investigators are not interested to see what was the color of pilot's shirt or was he picking his nose before he pressed a button. In addition, you would need several cameras to record every single action of the pilots, and even then it would be hard to figure out as some buttons are placed very close to each other.

FDRs solve this problem as any input from the pilots are recorded. CVRs capture all communications so the motive or reason behind any input from pilots are be found out.



I suggest you to read some NSTB investigation reports (here or here) to get a detailed idea how in-depth knowledge the investigators can get by these two instruments.