See this thread:
The long and short of it is that version 3.16 does not correctly adjust the read and write offsets for the cd/dvd drive, as was the case with prior versions of plextools. I don't mean any random optical drive: it fails to do so with Plextor drives! I've personally tested a Premium and 712A - and it flops when it comes to this very basic functionality.
Since there is no way to manually enter the correct offsets, it renders the program useless for any sort of CD ripping or writing. Well, for me anyhow, as I like to compare my results to the AccurateRip database, and for that you need to rip with the correct offsets!
I honestly can't believe they never bothered to fix this.
In case they did fix this, or there is a way to adjust the offset settings manually, please advise.