About an year ago, I downloaded the 'Windows Vista with Service Pack 2' MSDN untouched ISO from a torrent site... I burned the ISO to a DVD and thereafter, I deleted the ISO. My internet speed here is a lame 256 kbps... I just can't afford to download the ISO again(30+ hours!)... I now want to have an untouched Vista SP2 ISO in my collection... Is there any way I can build an ISO from the files and folders on the DVD that I have and make the ISO to match the hashes of the untouched MSDN one?