Subtitle To Video Converter can multiplex external or internal subtitle to avi/wmv. It supports the external subtitle format like srt, ssa, sub, idx, smi, psb, ass, usf, ssf, supports internal subtitle of MKV OGM DIVX. Extra codecs may be installed before conversion. Then rename the external subtitle with the video clip name. The program will load the subtitle automatically. If the subtitle does not match audio or image, set the delay options to sync the subtitle time. Normally the portable devices and DVD players do not support subtitle files, if you want to play video with subtitles, the software provides the solution of muxing subtitle to video, thus you can play those output video files with subtitle on portable devices, even burn them into DVD without subtitles loss.