Nero doesen't really do anything beter than other methods (sometimes worse), but it does everything beter than other methods. Did that sound a little confusing or contradictory? What I mean is, Take any program that tries to do everything that nero does, encoding, transcoding, compressing, and just about every common kind of burning imaginable. Nero is beter (within the same cost bracket). Take any individual task that nero does, and it can probably be done beter by a half dozen specialized programs. Nero is the best does everything program out thier.
As far as roxio, I have not used recent versions, but compared to older versions of roxio that I have used, refer to my previous statments, "nero is the best does everything program out thier".....
I use nero for everything first, unless the results are not good enough, or it cannot do it right, then I go to other software.
I have older versions of roxio, that are not even on my computer, because with nero on there, they are worthless. Like I said though, I have not used roxio in a while and have not used the latest versions.