3D Playback from POWERDVD 10 using on Acer H6510BD

rdx

I recently bought the LG Blu ray writer (WH14NS40) which comes with the PowerDVD 10 software.  I notice there is a "3D" icon on the software where I can enable 3D.  I understand this software says it can convert any 2D DVD/Blu ray into 3D.  I googled and noticed there are so many sub versions of PowerDVD (other than version 10, 11, 12, 13), it says only the Ultra version can play 3D.  I am confused.

 

When I was playing the 3D Blu ray disc last night, I also clicked on "Play 3D" from the disc.  Anyway, I did see the 3D image but I was wondering if it was playing 2D-3D conversion from the software or a true 3D from the Blu ray disc ?  Any difference ?   To make it more confusing, Acer H6510BD  itself also have 2D to 3D conversion feature. I didn't turn it on though but I noticed it was on 3D automatically.  (Note: I tried using the 2D-3D conversion feature from the projector  the other day when I didn't enable the 3D from the PowerDVD software and I had to select that function).