cdda2mp3: 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/cdda2mp3 - from package: icedax

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

Error in other languages:
cdda2mp3: bevel nie gevind nie
cdda2mp3: comandă negăsită
cdda2mp3: comando não encontrado
cdda2mp3: commande introuvable
cdda2mp3: command not found
cdda2mp3: käsku ei ole
cdda2mp3: không tìm thấy lệnh
cdda2mp3: komanda nerasta
cdda2mp3: Kommando nicht gefunden.
cdda2mp3: kommandot finns inte
cdda2mp3: komut yok
cdda2mp3: nie znaleziono polecenia
cdda2mp3: níor aimsíodh an t-ordú
cdda2mp3: no se encontró la orden
cdda2mp3: no s'ha trobat l'ordre
cdda2mp3: opdracht niet gevonden
cdda2mp3: parancs nem található
cdda2mp3: perintah tidak ditemukan
cdda2mp3: príkaz nenájdený
cdda2mp3: příkaz nenalezen
cdda2mp3: команда не найдена
cdda2mp3: командата не е открита
cdda2mp3: 命令找不到
cdda2mp3: コマンドが見つかりません