print("Playing ", disk.getLabel(command))
local lenght = lenghts[disk.getLabel(command)]
local timer = os.startTimer(lenght)
while true do
  local evt, arg = os.pullEvent()
  if evt == "disk_ejected" then
        if arg == command then
          break
        end
  elseif evt == "timer" then
        if arg == timer then
          disk.playAudio(command)
          timer = os.startTimer(lenght)
        end
  end
end