MIB2 and subpicture

[yokohama]

My english not very well. I hope someone can help me.
I would like to backup MIB2 menu and main movie
So I use IFOedit Strip streams, Then I get the
new VTS_01_x.vob, Everything look is good
But If I play the movie, I can't change subpicture
Even I use the Subpicture menu to setup ok
and play again still nothing...
I'm sure subpicture is good, I can see in the Ifoedit
But I can't change subpicture from my DVD player's remote
control (when main movie play)