Can I play a Blu-ray disk on Samsung Trudirect SpeedPlus?
No, you can't play a Blu-ray disc on this because this is actually a disc creation tool. It does not have Blu-ray playback capabilities which means you will have to acquire another application.
You will need an application like Cyberlink PowerDVD in order to play the Blu-ray disc: http://www.cyberlink.com/products/powerdvd-ultra/features_en_EU.html?&r=1
Or, if you prefer free software, then install VLC Media Player.