All I can say is this program works. I bought it a few days ago and have used it on 5 movies so far and it took Cinavia right out. I've played them and notice no degradation of audio. Dunno why so many people seem to skeptical about this program without even trying it. DVDFab is the only other program offers similar Cinavia removal (DVDFAb probably stole it from them) and it's more expensive and doesn't have nearly the database that CinexHD has. I don't burn that many DVDs anymore but when I do it for a Cinavia protected movie, this program does the trick for me. There are two options to use, one that doesn't use a database and will mask Cinavia so the player chip doesn't pick it up but there is a chance of some audio issues. The other is using the Database and this one removes Cinavia, not just cover it up, with no audio issues that I've noticed so far.