Okay, I downloaded the Vista RC1 ISO from Microsoft's official site and since I don't have a DVD burner I had to split the files (using "The File Splitter") and put them to CDs. Then, I copied the files off the CDs to another computer with a DVD burner and merged them back together. Then, I clicked "Burn ISO" in Burn4free and it successfully burned the ISO to a disc. However, it won't work in my DVD drive (this isn't a problem with the DVD burner nor drive since I have tested different things in it)> Does anybody have a solution. Thanks.