I've searched here and google and am not coming up with much. What is a good external DVD drive that is going to rip DVDs much faster than the built in drive in my 2011 iMac. I understand they have "riplock" and are generally slower but I bought a little portable LG "notebook" DVD drive (one that runs off 2 USB ports with no power cable) and its actually SLOWER ripping DVDs so I don't want to make that mistake again. What is the fastest DVD ripping drive and are there any benchmarks out there?