Hello, I have a Windows 7 RTM copy but it is in ISO-13346 format (it is a must). I'm thinking which software can support and burn ISO-13346. My computer have already installed ImgBurn & Alcohol. But after burning Windows 7 in ISO-9660 format, it seems to be non-bootable for my computer. For you, your comp should run the DVD copy smoothly (as it is new & have more compatibility, support). I am thinking the causes of this problem. Does anyone think that it is a hardware problem? Actually my comp is a bit old, so maybe unsupportable problem occurs and cause my Win7 doesn't be bootable for my comp. Does anyone think that I should use any other software to burn my Win7 ? Maybe Nero? Or Roxio? Do they support ISO-13346 ? Thanks for thinking about my problem. Any comments are appreciated.