by lettuce » June 15th, 2008, 2:01 pm
I can only answer in general terms. And I can first say that if it wasn't intended to work, it wouldn't be uploaded here. And secondly, how many times and for how long you have to listen to notice any effects will depend on you. Some people are blessed with good suggestibility and will find files like those working after the very first try, while others might have to listen many times before noticing anything. The only way to find out is to try. You may be surprised at how easy it is.