ladvdc: 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/sbin/ladvdc - from package: ladvd

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

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