I still don't trust Amazon's downloader, amazonGSdownloader.exe, as they are incredibly elusive of any mention of that program. I may analyze it one day, but, experience has taught me, if a company requires you to install a piece of software, doesn't disclose to you what it does, or even upfront that you need to install it as a condition of purchase or use of another product, then that's never good; you probably wouldn't want it within 50 feet of your computer if you knew what it really did.
Thanks for the head's up though.