Okay i have download a mkv file. So to convert to dvd i extract the video , subtitles(S_TEXT/ASS) and audio using mkvextractgui. But somehow, the ass i got is only the script without the dialogue. It play fine in my mdia player clasic with the vobsub. The ass only contain script of the timing and styles of font. But the dialogue isn't there, it show when i play the mkv file. So can anyone help?