For those who have ever wondered how BlindWrite works with the Plex Premium to backup SecuRom 4.8+ read below.
It was discovered on a beta firmware of this drive that the speed of the motor could be locally adjusted during the write. This was made possible because Plextor, for some techniques used in the premium needed to generate speed synchro totally decorrelated to the media.
Usually, the speed of writing is finely adjusted with an information that exists on the writable media, called ATIP - this information is a wobble signal that sync in the motor. On the premium, when you set the speed to *4, and you use Gigarec, the atip is no longer used by the drive, so it’s possible to vary locally the speed, thus it affect the density of the sectors.
Also, you can extract a new .BWA file from the copy made with Plextor Premium and BlindWrite 4.5.3 and above (also BlindWrite5). If the Twinpeak method were used this would not be possible.