Subtitles insertion.

I have an old movie (the word, david jensen) in VHS format. It has original english language. My intention is to make a copy for myself, using DVD (R+ o R- ?) . I would like to create sub titles (based on a translation of the original script (Yet to me made))and be able to "merge the DVD movie and the spanish script, to generate a English movie with spanish sub titles. I'm brand new at this game, I consider myself average computer learned. Is there any hope to my plight? I would like to hear from your knowleadgeable guys out there, hoping I can get a "sane" answer. I will read this forum.

R.S.V.P. gentleman, please...