I did a comparison by running two movies, the same length, and did one on one system reading from nec3500 using stock firmware and writing to Pioneer a07xla, and the other movie on new nec3530 using dees firmware (no riplock removed), and writing to Plextor px716. The entire movie was complete, dvdshrink, dvdcrypter, burned and ejected, before the nec3530 was done even reading in the movie to the HD. Using the same system before this, when I had my benq 1620 in it, the times between the two systems were almost identicle. I even switched movies between the systems, and the nec3530, was just a really slow reader. Good burner, but slow reader. I may eventually try removing the riplock and see if it makes a difference, but all three other dvd burners rip at good speeds.