Last week I used an iPad with my controller and after flight, I pulled out the memory card from the M2Z and put it into a card reader on my Mac. Got four good videos, two in 4K and two in 1080p. Nothing spectacular, but it showed my camera was working. Today I flew out by Delaware Bay using my iPhone 7+ for just a few minutes, but stopped because I got high wind warnings and I'm still not all that comfortable flying around. When I got home I pulled the memory card and could see today's video, but not like the last ones. Instead of seeing a thumbnail picture of part of the video, I saw what appears to be a generic files descriptor showing an mp4 video. Tried to open it but I got a file corrupted message. It wouldn't open in QuickTime, or iMovie or Movavi Video editor? Any ideas what may have happened to my video? It looked OK on the iPhone as I was recording?