I know that you will get some great advice here but I just want to say not being technical myself, just a trial and error person, I found Nero gave me hassles and I ended up uninstalling it. I also know that many people have no troubles with Nero and like it etc.
I found that I just love to use 1clickdvdcopy pro and this I trialed, first of all, to see how it went.
Maybe, you might like to try it also?
I run Windows Vista and I use Taiyo Yuden discs and burn at 8X.
You need to also have a free software program to run with 1 clcik which is DVD43 (4.0 latest version).
This I have found to be a delightfully easy, quick as quick program that just copies, encodes and burns with easy interface and is truly one that I just love.
Good luck, as I mentioned I'm sure you'll get good advice but had to let you know about 1clickcopydvd pro.
Thanks and good luck.