What
Merge multiple video files into one using ffmpeg.
Why
Quick way to combine videos without re-encoding (preserves quality).
How
Create list.txt:
file 'video1.mp4'
file 'video2.mp4'
Run:
ffmpeg -f concat -safe 0 -i list.txt -c copy output.mp4
The -c copy flag streams without re-encoding for fast merging.