People are talking in a very matter of fact manner about the possibility of one NATO country (the US) invading another (Greenland/Denmark), which would likely result in massive rounds of tit-for-tat sanctions between the EU and US and one member...
The .lrf files are the low res version of the high res (4K for example) files, allowing fast file transfer to you mobile device from your drone etc. Renaming the file extension to .mp4, as you mention, will allow playback of these files on...