It's been awhile since I've made backups, but the last ones of Securom I did were 4.8, and I have never seemed to be able to make a good BWA with Blindwrite. I use Alcohol to make an MDS file, which you can start making an image, and then stop it as soon as it's made towards the beginning of the process, and then use the BWA converter to convert from MDS to BWA. Then use Blindwrite to burn then image. I was using a combination of 4.2.9 and 4.2.5. I think the BWA Builder from 4.2.9 maybe, and the 4.2.5 program or the other way around.