Those CD's are from private people like you and me who have been asked to submit their families so that other people can obtain the information. Like all information- some is good ; some is NOT! My biggest concern about the whole process is that as soon as you have entered 400 names into the program it asks you to download and submit! Most people i have run across are so excited to have just entered the information they are happy to comply HOWEVER, when you first begin is when most mistakes are made aaaaaannndddd!!! it is less likely the appropriate documentation was put in as well. At the time I initially submitted my file- I had no idea it was going to be used for RESALE purposes or I would have done a better job at documentation. So they are CLUES- just like everything else but beware and good luck- they can help you a lot as long as you keep it in the proper perspective.