Hi everyone I just built a new computer and I like to make progress images as I install software in case something goes wrong I can go back to a clean partition. I installed Vista, the motherboard drivers, utilities, and video drivers, True Image (Version 10), and Disk Director (Version 10) on a virgin 640 GB hard drive and then made the OS partition 200 GB. I made an image split into DVD sized files and I ended up with one full file and another with 138,000 KB. I had a problem and I wanted to try a clean install. I formatted the OS partition and reinstalled everything above except one of the mother board utilities that was causing me a problem. Therefore, I expected my new image to be smaller. The new image was one full file and another with 3,185,000 KB. I"m certain that my compression setting was the same (normal) for both images and I tried making another image just to be sure with the same result. How can the same files result in an image that is nearly twice as big (over 3 GBs larger)?