Hi!
I'm a very old Nero user and one thing I've found about using the Multi-session feature (this may be true of other programs as well) is that there is a max number of times that you can add another session. The disk can get really unstable and even unreadable by some drives.
I take a CD/DVD with me on my service calls, with all my Utility programs on it. I found out that RW and Multi-session disks were unreadable on many of my customers CD/DVD drives.
Nero has always been my favorite CD burning program, but it's become seriously bloated by all the add-on features. I've stopped at version 8 and I use only the "Nero Burning Rom" feature.
For HD backups, there are much better programs, like Ghost and Acronis True Image.
I still...