I would say it's trusted because allot of things are talked about publicly and between the developers we can see the difference between someone putting out BS and someone with genuine work and if we are not sure we can pull apart applications easy enough to check. In that comment though I didn't actually say anything here is trusted, I said pre-modified ISO's are a pain since as a developer I'm not always going to support every single version of Windows 7 on the planet, I support the official releases and if anything else happens to work in the process then good for them. The only time I personally downloaded a new disk is when the official SP1/SP2 disks hit the net, plus my internet speed isn't a problem to download any updates with when in a day I can download over 4GB