ffmpeg -i IMG_8361.MOV IMG_8361.mp4;rm -f IMG_8361.MOV
ffmpeg -i IMG_8386.MOV IMG_8386.mp4;rm -f IMG_8386.MOV
ffmpeg -i IMG_8392.MOV IMG_8392.mp4;rm -f IMG_8392.MOV
ffmpeg -i IMG_8421.MOV IMG_8421.mp4;rm -f IMG_8421.MOV
ffmpeg -i IMG_8440.MOV IMG_8440.mp4;rm -f IMG_8440.MOV