Hi, i have a video clip with ".m2v" extension, 2 audio streams with ".ac3" extension and a subtitle file with ".sup" format. Now im trying to create a DVD with 2 audio channels, one in english and one in japanese, and subtitle that can be enabled and disabled during playback. I have managed to add the 2 audio streams, but for some reason the subtitle dont work. I used IFOedit . When i played the DVD, it says i have subtitle, but nothing appears. Could someone tell me whats the problem is ?
I think its something to do with subtitle settings. Thanks in advance.

NOTE: i converted the subtitle from srt to sup with srt2sup.