Bash script spanning folders for burning CD DVD or BLU RAY

gistfile1.txt

#!/usr/bin/env bash
# Source https://stackoverflow.com/a/59742762/1433252
sourcedir="/home/saudiqbal/Documents/ServerFiles/"
destdir_prefix="/run/media/saudiqbal/HomeDrive/Temp/disk_"
destdir_suffix=""
mblimit=700
# DVD 4400 / 4300
# bytelimit=$(( mblimit * 1024 * 1024 )) # MB as measured by OS (MiB)
bytelimit=$(( mblimit * 1000 * 1000 )) # MB as measured by marketeers
disk=() # empty array
dir_size=0
find "${sourcedir}" -type f |
while read file; do
	file_size="$( stat --printf="%s" "${file}" )"
	disk_number=1
	stored=false
	while [[ "${stored}" == "false" ]]; do
	if [[ "${disk[$disk_number]}" == "" ]]; then
		disk[$disk_number]=1
	fi
	if [[ $(( disk[disk_number] + file_size )) -lt ${bytelimit} ]]; then
		dir="${destdir_prefix}${disk_number}${destdir_suffix}"
		mkdir -p "${dir}"
		filedir="$(echo ${file} | sed 's|[^/]*$||g')"
		filedir="$(echo ${filedir} | sed 's|'${sourcedir}'||g')"
		mkdir -p "${dir}/${filedir}"
		disk[$disk_number]=$(( disk[disk_number] + file_size ))
		filenew="$(echo ${file} | sed 's|'${sourcedir}'||g')"
		echo "${disk[$disk_number]} ${dir}/${filenew}"
		cp "${file}" "${dir}/${filenew}"
		stored=true
	else
		disk_number=$(( disk_number + 1 ))
	fi
	done
done
exit 0

Similar scripts https://unix.stackexchange.com/questions/10158/splitting-large-directory-tree-into-specified-size-chunks