If you are scared already by using a simple software then leave it! Use AnyDVD.
I've a bit of experience flashing different firmwares of different devices (my old pioneer and sony dvd drives, pc bios, even my htc cellphone etc.) to get the most advantage of the hardware against digital locks (what is known to be sort of a Defective by Design
trend); Though most of them have been previously tested by professionals.
Also if the drive is messed and wrecked accidentally it would ruin a laptop than just a single dvd drive.
Nonetheless maybe I have not conveyed my request properly: I rather want to remove all of my drive's possible locks and limitations and optimize it
as said before besides simply removing the region lock that is not really the main concern.
Thank you again for your help and I hope that someone would make some firmware patcher for these devices.