[QUOTE=mciahel;2472573]Kprobe has some options about RPC:
I am not sure, if this is what you want, and I am also not sure if Kprobe does work with modern drives.
Apart from that, there are some additional region locks in Windows and in (commercial) DVD playback applications.
Is it only me or does that look exactly like as LtnFlash? Anyway, Kprobe does not have ability to clear vendor counter, only user (which I can reset in LtnFlash myself).