I recorded a video today on my P3 Advanced and for some reason the video file format changed to MOV instead of MP4. I usually prefer MP4 but I thought no biggie.

I imported the file but neither my ipad or computer can open it. Is it just corrupted or is there something I'm missing here?

I think the file might be corrupted. Don't know why.

Does it have a wonky date? Like 31.12.2013 ?

Putting the card back in the Phantom and turning it on and waiting a minute or so (maybe less) can fix video files that were not 'closed' (if the Phantom was turned off while still recording for example).

Good luck.

I deleted it. Never mind. It could be that I turned the phantom off while it was still recording.