I am curious to know what superdrives you have in your new imacs. Please state which model you have and what model superdrive. I have heard the rip speeds on the Hitachi (HL) drives are over twice as slow due to the drive slowing down. Surprised everyone hasn't been making a bigger deal of it. I will have to find the site I saw the benchmarks on but they mentioned the handbrake benchmark took over twice as long due to the Hitachi drive.