I've been trialing BootBack/FD-ISR & here are a few thoughts about the experience. I have been a GoBack (Not Version 4) user in the past & liked that it would roll back any drive I asked it to monitor. BootBack/FD-ISR doesn't have that ability & that is a negative in my eyes. BootBack/FD-ISR is also very slow as compared to my experience with GoBack. Is the speed of BootBack/FD-ISR dependent on the CPU & HDD speed? If the application in the future could be expanded to take snapshots/images of any partition I would consider that a major plus. So it seems to me that BootBack/FD-ISR is best suited to those users who do not use multiple partitions. I tend to be a user of multiple partitions. I recently purchased True Image 9. I used it to transfer the info from a too small HDD to a larger one. It went smooth as silk. I also recently used TI9 to rescue myself from a mistake last week. Again it went very well. I believe that I am going to try to use TI9 like BootBack/FD-ISR, by doing a lot of differential backups. I will not buy BootBack/FD-ISR after the trial ends. Hopeful in future editions there will be changes that make it more attractive to me.