wav2cdr: command not found

Have You tried accessing the binary with the full path?

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/wav2cdr - from package: wav2cdr

You may install the required package with command apt-get install {package}
Error in other languages:
wav2cdr: bevel nie gevind nie
wav2cdr: comandă negăsită
wav2cdr: comando não encontrado
wav2cdr: commande introuvable
wav2cdr: command not found
wav2cdr: käsku ei ole
wav2cdr: không tìm thấy lệnh
wav2cdr: komanda nerasta
wav2cdr: Kommando nicht gefunden.
wav2cdr: kommandot finns inte
wav2cdr: komut yok
wav2cdr: nie znaleziono polecenia
wav2cdr: níor aimsíodh an t-ordú
wav2cdr: no se encontró la orden
wav2cdr: no s'ha trobat l'ordre
wav2cdr: opdracht niet gevonden
wav2cdr: parancs nem található
wav2cdr: perintah tidak ditemukan
wav2cdr: príkaz nenájdený
wav2cdr: příkaz nenalezen
wav2cdr: команда не найдена
wav2cdr: командата не е открита
wav2cdr: 命令找不到
wav2cdr: コマンドが見つかりません