To backup DVDs, I use DVD Shrink most of the time...(along with DVD Region+CSS Free to remove any encoding, region code...)
If Shrink was not able to shrink enough/wasnt able to successfully backup the DVD, then I use either DVD X Copy Platinum, 1Click DVD Copy, DVD Decrypter, DVD X Recue, Alcohol 120% sometimes...
As for burning data, I use Nero...
Hope that helps!