Looking for my first DVD burner, confused :/

Hi, first of all sorry if my english sucks! I know it :stuck_out_tongue:

Im looking for my first DVD burner, and i have to say, im confused…
I need it to make backups of data, and i have to be shure that it will lasts safe… its my work and need SAFE DATA.
What DVD burner would you recomend me?? And which is the best media for that?? Im between the 109 from pioneer or lg-4163, or may be a sony o something else… please I need an advice.
I hope you understand my english…