DVD Audio Rip

#!/bin/bash
# Filename: dvd-audio-rip.sh
# Version: 160612
# Author: robz
# This script will rip the audio tracks off of a "concert dvd" to multiple mp3
# files named Track 01, Track 02, etc. You then have options listen to them on
# yer iPod, in your car or burn them to a cd. Quality of the rip depends on the
# option switch "--lame_preset", see "man transcode" for other presets.
# You may need to alter the "DRIVE" variable to suit, you'll also need packages
# "transcode" and "lsdvd" to be installed.
# Usage: Double click the script and select "Run in Terminal", Ctrl+c to stop.

trap "killall transcode; exit" INT TERM EXIT      # Terminate this script.
mkdir -p new-audio; cd new-audio                  # Make a dir. for the mp3s.

DRIVE="/dev/sr0"                                  # Path to your dvd drive.
TITLE=$(lsdvd -a "$DRIVE" | awk '/Longest track/ {print$3}')
CHPTR=$(lsdvd -a -t"$TITLE" "$DRIVE" | awk '/Chapters/ {print $6}')
ASTRM="0"                                         # Audio stream (0=pcm 1=ac3).

for TRACK in $(eval echo "{1..${CHPTR%,*}}")      # Loop through the chapters.
do
    transcode\
    -i /dev/sr0\
    -x null,dvd\
    -T "$TITLE","$TRACK",1\
    -a "$ASTRM"\
    -y null,tcaud\
    --lame_preset extreme\
    -m "Track "$(printf "%02d" "$TRACK").mp3
done                                              # Files are on the desktop.