Oups, I did it again!
In less that 24 hours, without any Blu-Ray equipment, but with the help of Janvitos, I managed to decrypt and play a Blu-Ray media file using my known-plaintext attack...
The file from the movie "Lord of war", play well with VideoLan.
Janvitos gave me few files on the BD disc and a memory dump...
Note that I don't address BD+. The file don't seem to be BD+ protected.
I will keep you informed If I found anything new...