"The Just Speed feature lets the burner burn at the max speed of the burner,
without regards to the actual speed of the media. This can all be turned off
or on, and its fully supported within Nero.
Here lies a problem with the drive. To cut to the chase, this feature does not
work on this model. Even with an upgrade to the R702 firmware, Nero will not
allow the drive to burn at speeds rated over what the media has stated. This
means, if your media says 24X max, then that's the speed this drive will burn at.
Turning on and off the function in Nero does not work. I tried Alcohol 120% which
yielded the same result. This is bad news because if you are stuck with 200
24X CD-Rs from the recent deal at your local office supply store, you will most
likely not be able to utilize 52X burning."