Converting/burnin an avi/mpg to dvd with subs included etc

hi

iv downloaded a movie but its in thai but it has an .srt file which is the subs.

now as far as converting goes i use winavi and as for burning i use slysoft clonedvd2

so what i need to know is what to do with the srt file so i can select/have subs in the movie on my dvd player

hope you understand my Q and…

i thank you all in advance.

http://club.cdfreaks.com/showthread.php?t=135193
http://www.videohelp.com/forum/viewtopic.php?t=245188