yes that is correct. the unit comes with a general alignment CD which is good for many things. What makes this a good deal is the guy's knowledge, their customer service is unparalleled. They walk you through every thing applicable to that machine. I just spoke with him Friday about Lymes and he pointed out that I need to start with one particular track on the general Alignment Cd and see what my reaction is, then from there he can guide me on what to use next etc. They always want to work with you on TX' ing your condition. So I highly recommend this unit if you do not know what the hec you are doing and don't have a fortune to spend. A lot of times you can use minimal CD's if you talk to him he can narrow down which freqs to use but each CD is a set with multiple tracks and many frequencies.

Alex