I reformatted the hard drive in my Sony Vaio Laptop and now when I try to install Windows 7 it acts like the DVD has a bad spot on it. I know the disk is good. At one point it asked me to install Sony CD/DVD Device Driver to install Windows. I can't find the device driver. When I went to Sony's website, there are all kinds of files to download, but I did not see one that has a device driver for the CD/DVD. Thanks for any help.