Yes, 16x media is available for these burners. It is not common amongst retail stores yet, but it can be found at many e-tailers such as Meritline or Supermediastore. 2.4x refers to the DVD+R standard. Since most new burners support both DVD +/-R, you should be able to purchase either at speeds rated at 16x. Dual layer +R has been available for a while now. It is not practical for most people as prices are still quite high. Dual layer support for -R is still a very new technology. I am not even sure whether any dual layer -R media has even hit the market yet...