Kunovski: I still get an error when I try to run the disc... :( guess I'll have to wait until I earn enough money for full version of PowerDVD (or a home cinema :D
stg83: Did you try using Passkey Lite? Just follow the last couple of instructions in my original post. Some people have had success using Passkey Lite concurrently with VLC player.
finally I've been able to try this, using vlc as a player while the passkey was running
the Sucker Punch blu-ray disc ran without problems, so I've tried the Gravity disc but received an error message...
I was pretty angry so I stopped trying for a bit, but then I realized I should at least look at the error message and read what does it say - so I inserted the disc, waited for everything to boot, started passkey, started vlc and hit play blu-ray, and it WORKED :D
I have no idea what that error was or if it will come again, but for now I'm extremely happy, so thanks!!! :)