A simple way to copy a DVD ISO using dd

rip-dvd-iso.sh

#!/bin/bash

DEVICE=/dev/cdrom

DD=`which dd`           || { echo 'Required command not found: dd'      >&2; exit 1; }
ISOINFO=`which isoinfo` || { echo 'Required command not found: isoinfo' >&2; exit 1; }
SED=`which sed`         || { echo 'Required command not found: sed'     >&2; exit 1; }

LABEL=`"$ISOINFO" -d -i "$DEVICE" | "$SED" -nre 's/^Volume id: //p'`
BLOCK_SIZE=`"$ISOINFO" -d -i "$DEVICE" | "$SED" -nre 's/^Logical block size is: //p'`
VOLUME_SIZE=`"$ISOINFO" -d -i "$DEVICE" | "$SED" -nre 's/^Volume size is: //p'`

echo "$LABEL.iso ($BLOCK_SIZE, $VOLUME_SIZE)"
"$DD" if="$DEVICE" of="$LABEL.iso" bs="$BLOCK_SIZE" count="$VOLUME_SIZE" status=progress