As most dashcams save videos in 2-5 minute segments, sometimes you need to stich them together to create a full-length video - e.g. road trip footage.
To do this, the best solution is to use FFmpeg's concat function.
Step 1: Create a file containing the list of segment file names (in Windows Command Prompt)
(for %i in (*.mp4) do @echo file '%i') > mylist.txt
Step 2: Run ffmpeg to create the output file
ffmpeg -f concat -i mylist.txt -c copy output.mp4
