I looked at the documentation and it does not seem clear to me. For example are the following two commands essentially the same?

ffmpeg -i .\video.mp4  -i .\metadata.txt -map_metadata 1 -codec: copy -y out.mp4

and

ffmpeg -i .\video.mp4  -i .\metadata.txt -map_metadata 1 -c copy out.mp4

If they are not the same, then what is the difference?

I am finding myself tripping over these two flags a lot and would like to know conclusively.

Any help would be greatly appreciated!

I looked at the documentation and it does not seem clear to me. For example are the following two commands essentially the same?

ffmpeg -i .\video.mp4  -i .\metadata.txt -map_metadata 1 -codec: copy -y out.mp4

and

ffmpeg -i .\video.mp4  -i .\metadata.txt -map_metadata 1 -c copy out.mp4

If they are not the same, then what is the difference?

I am finding myself tripping over these two flags a lot and would like to know conclusively.

Any help would be greatly appreciated!