Since Cinavia has been in the news lately, I decided to do a bit of research and see if I could find any information related to Cinavia detection in computer software players.
What I've found is a bit confusing/contradictory. It seems that Cyberlink, the makers of PowerDVD, released a major revision of their software one day before the mandate to include Cinavia. This version is PowerDVD 12.
Originally, it doesn't seem to have included Cinavia detection, but updates to the program seem to have it added in. The trial for PowerDVD 12 version 1905 was reported to have it, but buying a registration key removed Cinavia from this version! That may be the last gasp for freedom from Cinavia in PowerDVD however.
Edit: And if you want to be certain to get a version without Cinavia detection, you need version 1618.
The official description of PowerDVD 12 now shows that Cinavia is included in the program. You can read this at the bottom of this page: http://www.cyberlink.com/products/powerdvd/spec_en_US.html?&r=1
If you must use a commercial program for playback of blu ray, I'd suggest avoiding PowerDVD from this point forward. Stick to Arcsoft TMT 5 or Corel WinDVD Pro 11 while they are still available. Or use one of the free players like Media Player Classic Home Cinema if you don't need menu playback.
Slysoft is reported to be developing a new player...but that news has been out for years now. They don't seem to be in a hurry about it. And of course, you can try the DVDFab player.