Hi, I did the over-wifi update for my iPad and I had alot of bugs, ie videos not playing, etc. So I decided to download the entire 2GB .ipsw and do a "restore iPad". The file downloaded, but I'd like to make a copy of it before installing, as I know it always deletes it after use. I'd like to keep a copy so I don't have to download it again, if needed. Can't find it anywhere. Any suggestions?