My dvd player having trouble

Hey guys…just wondering if anyone else is experiencing this problem.

Basically…i load an srt + the movie (same filename) xvid…onto a cd/ dvd+r (booktyped)…and the subtitles wont appear on the dvd player. I tried it on computer and it works fine. However my dvd-RW had no problem with the subtitle (prison break) but was kinda off with the synch.

Any ideas?