burn a file or an iso to a cd or dvd.

burn-cd-dvd.sh

#!/bin/sh

# burn a file or an iso to a dvd.
# requires the cdrtools package.
# usage: $ burn FILE [TITLE]

# config
speed=1 # leave blank for default speed
dev=/dev/sr0
tmp=~/.cache/burn

set -e

# check dependencies
for c in mkisofs cdrecord; do
    command -v "$c" >/dev/null || exit 1
done

# check files
[ -b "${dev}" ] || exit 1
[ -f "${1:?}" ] || exit 1
[ -r "${1:?}" ] || exit 1

# create the iso
case "$1" in
    *.iso)
        iso="$1" ;;
    *)
        iso=${tmp:?}/$(basename "$1")-$RANDOM.iso
        trap 'rm -rf "$tmp"' EXIT
        mkdir "$tmp"
        echo Creating ISO...
        mkisofs -r -J -iso-level 3 ${2:+-V "$2"} -o "$iso" "$1" ;;
esac

# burn the iso
echo Burning to Disk...
cdrecord -v -eject ${speed:+speed=$speed} dev="$dev" "$iso"
echo Done.