Is converting a DVD to an ISO, and then burning that ISO onto another DVD exactly the same thing as copying all the files from one DVD to another? What about if instead of copying to another DVD, I copied to a USB flash drive (i.e. DVD > USB), would it still be the same thing as DVD > ISO > USB?
If they are the same, then why does Microsoft have a specific tool for copying the Windows 7 ISO onto a USB flash drive? Couldn't I use any tool that extracts an ISO and copy the resulting files onto a USB flash drive? Or if I had the original DVD, couldn't I copy the files from the DVD directly to the USB flash drive without bothering with Microsoft's utility at all?