Download the software from Imgburn. Choose mode, build, advanced, bootable disk. Go to allbootdisk to get a bootable image of your operating system. Choose from Windows 95 through Vista. Download the diskette image. Name and save to desktop. Choose volume and label. Click ok. Make the output burn to image file. Name the file and save it to the desktop. Download Sun Virtualbox. Test the image by choosing settings, storage, add device. Choose media manager. Select make primary slave. After testing the image, burn it to a disk.