When you are thinking of dowloading a file, to make sure it is what you want, right click on the file. A drop down list will appear, click on Bitzi web look up. This is a program that gives a description of the file but it will only tell you if any users have actually commented on the file. You may get an "Unknown bitprint" message if there have been no responses. Otherwise you will get comments on the file stating the quality and accuracy. Unfortunately there a lots of people with no life out there that rename files or try to send you some form of virus.

Hope this help