Thanks, for the info. It wasn't on the internal memory or could get it back by putting the SD card back in the drone and do the power up and power off.
I probably didn't stop the video recording before shutting down the Mavic Air.
Mavic Air - Last night I thought I took a 10-12 min video and when I got home the video was not there. the file shows 0 kbs in size. The my air was running low on battery and I shut it off after it landed is that why it did not save.