Hello,
I have shot numerous clips of Falcon training only to find that the footage is not viewable when I get home and connected to my Mac. How long must I leave the P3A on to render the footage? Or is there something else that I am missing?

SpiritFalcon

The recording is a straight video recording and written to the microSD card in real time.  There is no rendering.

If you are recording and turn the power off without first stopping the recording, the file could be corrupt and not written properly.  To fix this simply replace the card and power it up again, and allow a few seconds for it to fix the file and close it properly.

What format are you recording in?  mp4 or mov?  You may have an issue with your mac where it doesn't have the proper codec installed to be able to read the video file.