That did not prevent you from getting the copy.
The playback problem is caused by Cinavia, a license on discs and players that will block playing back a copy.
This has been known for a long time now and has nothing to do with preventing making the copy.
We get a lot of queries about the playback blocking of DVD / BD copies caused by Cinavia.
There has been a lot of discussion about this for some time now. You can read all about that here:
http://forum.slysoft.com/showthread.php?t=48789
Since this does not prevent the copy we do not see this as a real protection as such.
We will most likely address this in our new Blu-Ray product Slyce but not before 2013.
The easiest solution for the "Cinavia problem" is to use a player which *cannot* play retail Blu-ray discs.
There are some media players which even support full blown Blu-ray menus, like the Netgear NTV550 (not tested myself).
No retail Blu-ray playback = no AACS license required = no Cinavia.
If you can live without full menus, there are many very good and very cheap media players available.
IMHO recording to Blu-ray media is extremely painful anyway. Expensive, slow, unreliable.
A harddisk as a backup media is cheap & fast.