Digital frequency using headphones do not work. And actually digital frequency from cds can cause a cancer. WHAT works is analog. But not all head phones are good. The best way is to use a subwofer the type with a front speaker at least 12 inch 15 is better. Play the ANALOG frequency (I am talking about low frequency I am not sure about high frequency. I think you can keep dividing it down by 2 to get the lower frequency. Play that. It wont harm other people in the room if your body dont need it, no effect. but best to be out of the room if you dont need the frequency.
I have been studying it for a year (low frequency not Rife high frequency). I have had sucuess on back pain and I had a runny nose a few times and I listened to 22.02 (frequency for vitimin C) and with in seconds my nose stoped running.　　I know that it is not a major disease but it WORKED!!!

>ALSO does any one have any experience with using the CD programs and computer speakers, or headphones.. ?