I've added a new Sub to a DVD using several guides.
When I play the result direct from my HD on my pc, it plays ok. Not very well, it's a bit shocky, but it plays and the sub is in sync.

When I burn it to DVD and put it in my DVD player it freezes directly. If I use slowmotion or fast forward the movie is there. If I go to the following chapter it freezes directly.

I used the following tools: Vobedit to demux, SRT2Sub to create the new sub and IFOEdit to author a new DVD. I've burned the results to different media with Nero, all the same results... I've tried it with different movies...

If I place the burned DVD in my DVD burner it plays ok.

What am I doing wrong???
Thanx in advance.