25hsplit.ps1

$video = "path/to/source/file.mp4";
$video_extension = "mp4"; ##This must match what the source file has. eg. if it's flv, use that.
$output_directory = "output/directory/video"; ##destination folder for 2 hour chunks
$ffmpegEXE = "path/to/ffmpeg.exe";


for($i = 0; $i -lt 13; $i++) {
  & $ffmpegEXE -i $video -ss ("{0}:00:00" -f (($i)*2)) -t "2:0:0" -c copy ("{0}_{1}.{2}" -f $output_directory, ($i+1), $video_extension);
}