extract_dts: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/extract_dts - from package: libdca-utils

You may install the required package with command apt-get install {package}

Error in other languages:
extract_dts: bevel nie gevind nie
extract_dts: comandă negăsită
extract_dts: comando não encontrado
extract_dts: commande introuvable
extract_dts: command not found
extract_dts: käsku ei ole
extract_dts: không tìm thấy lệnh
extract_dts: komanda nerasta
extract_dts: Kommando nicht gefunden.
extract_dts: kommandot finns inte
extract_dts: komut yok
extract_dts: nie znaleziono polecenia
extract_dts: níor aimsíodh an t-ordú
extract_dts: no se encontró la orden
extract_dts: no s'ha trobat l'ordre
extract_dts: opdracht niet gevonden
extract_dts: parancs nem található
extract_dts: perintah tidak ditemukan
extract_dts: príkaz nenájdený
extract_dts: příkaz nenalezen
extract_dts: команда не найдена
extract_dts: командата не е открита
extract_dts: 命令找不到
extract_dts: コマンドが見つかりません