Your above-referenced article seems to be one way to do it, yes - to copy the BluRay movie to your hard-drive, then you can remove the disc and play 'the files'. This will give you the best battery-life as well, since only the hard-disk is spinning - not the BluRay drive, too.
DVD FAB DECRYPTER and several other packages offer the same ability, too.
All of those still deal with BluRay copying, however. Not playing.
I assume that, since your notebook came with a BluRay Drive, the vendor also included a BluRay Player, yes?
If it didn't, then you've got a Pay-For upgrade for Microsoft's Windows Media Player, or Cyberlink's $50 Power player.
There are at least two free players - KLite's Media Player Classic (which requires their free K-Lite Codec Package to be downloaded and installed as well), and VideoLAN, which only offers Unencrypted BluRay Playing at this time (I THINK!).
Hopefully, your notebook comes with a good BluRay player, though.