Egreat not Playing in 3d

[Charles01]

At the moment I am copying The 3D version of Titanic I tried to do a 1-1 copy of the 3d film but it came out 2D Is there somthing  I am doing wrong here. I am using Make MKV

[Charles01]

Just to add just tried a MKV Cop of 3D Titanic  on my PC which has a Nvdia Vision 3d Player and it is playing fine in 3D  but on the Egreat player it is in 2d why is this please and how do I get over this Problem./Thanks