Hey guys, I and my dad bought two 17" MBP and we're very happy about it. But what I am currently arguing so badly with my dad is whether the 17" MBP really burns DVD-R DL? It doesn't say anything accept it burns DVD+R DL. I tried searching through the internet, some website mentioned about burning DVD-R DL but some only say that it burns DVD+R DL. I haven't really have a chance to try buying the DVD-R DL discs to try it myself. So if any of you guys have tried or known whether it really does, please help me! Thanks in advance.