Using AVIAddXSubs and converting the srt you have a variety of options to configure the subtitles as regards font, font size, color, outline, position, etc. Its services are useful in cases your hardware player is not able to show the subtitles directly from srt or even if it does the result is not satisfactory. Software Description: AVIAddXSubs is a simple to use, free program to subtitle videos converting the original srt files you may have.