Be careful when downloading the beep test - there are different versions. There's the 20m and the 25m versions. You need the 20m version. If the one on the RN/RM website is not available then this one - http://www.army.gov.au/1_19RNSWR/1_1...ess/b-test.mp3 is the next best thing although in an Aussie accent. It also counts the level you are on as well.