I'm downloading the ipsw file from different sources but all of them when when finished downloading will extract a folder full of dmg images, several plist files and another folder, not the ipsw file I need. If tried this on several macs, different versions of OS 3.0 for various iphones and still the same result. This has never happened before. One fo those dmg images does have the 270 mb size, but when I try to mount it it asks for a pass. Any ideas?