The filename is built from several semantic components used in media distribution:

ffmpeg -i "sone443engsub.mp4" -ss 01:56:51 -t 60 -c copy output_piece.mp4

Since you included engsub (English sub), convert (conversion), and a timestamp ( 015651 ), you are almost certainly trying to

Sone443engsub Convert015651 Min -

The filename is built from several semantic components used in media distribution:

ffmpeg -i "sone443engsub.mp4" -ss 01:56:51 -t 60 -c copy output_piece.mp4 sone443engsub convert015651 min

Since you included engsub (English sub), convert (conversion), and a timestamp ( 015651 ), you are almost certainly trying to The filename is built from several semantic components