Subtitles running Format ??

[Videogt]

I have seen different style of running subtitles. It is like subtitles shows up while dialogues are delivered and also every letter of word into that lyrics will get appeared as in bold format. I was wondering how does that happen? I have searched for such displaying of format in subtitles. Does anyone know anything about how to get such format. It is very frequent now in [V]Channel Songs or songs played in the middle of movies. It looks awesome that way.

Help me out friends.
Thanks

[smrpix]

There are a variety of different subtitle formats that allow for varying degrees of enhancement.
http://en.wikipedia.org/wiki/Subtitle_%28captioning%29#Subtitle_formats (scroll up as well as down)

If you use burned-in subtitles and a graphics program the only limitation is your imagination.