rip.sh

#!/usr/bin/env bash

[[ $# != 2 ]] && exit -1

dvd_drive=$1
destination=$2

info=$(isoinfo -d -i /dev/sr0)
block_size=$(grep -oP '(?<=Logical block size is: )\d+' <<< "$info")
volume_size=$(grep -oP '(?<=Volume size is: )\d+' <<< "$info")
total_bytes=$((block_size * volume_size))

echo "Block size: $block_size"
echo "Volume size: $volume_size"
echo "Total bytes: $total_bytes"
echo "Ripping..."

dd if="$1" bs="$block_size" count="$volume_size" | pv -s "$total_bytes" | dd of="$2"