The big difference is the CDR was first put into the public domain by some bicycle riders. They still have GPS tracks posted on the Internet. I think an organization developed it for the public to use. The same is true with the PCQ and thousands of miles of tracks I put into public domain on GPSXchange.com Sam does not offer a service, he sells a product. Sam spent a lot of time and money to develop his product just like I did developing Mex2Can. The reason we made an investment was to return a profit and we try to protect our investment. Of course the proper way would be to have each customer sign a non-disclosure agreement but we just depond the integrity of our customers.