Finding free movie splice and need help to burn DVD

I just downloaded a movie and it came in 2 CD and also there are 2 subtitles files in SRT.

(movie name CD 1).avi
(movie name CD 1).srt

(movie name CD 2).avi
(movie name CD 2).srt

i am new to all of this,i just download two avi files that needs to be spliced together and burned to dvd can you please e-mail me detail instructions on what programs i need and how to use them. thx

i also want to see subtitles when i play it with my DVD player. and also wanna know how to burn a DVD with nero express

i have no problem to see subtitles with WMP i just wanna see them in my dvd player. i have VobSub already

all what i downloaded is legal