Fri Oct 28, 2011 9:19 am
Isn't that just the Youtube "captions" feature? The person who uploaded the video hand-filled out the text and timed it with the lyrics.
For anime stuff you have things like "hard subs" and "soft subs", I think the terminology is, wherein hard subs you get the video in something like Sony Vegas or iMovie or whatever and overlay text, then re-render the video out. So the words become part of the video. Soft subs are supported in VLC and maybe some other video playback programs, dunno, but it's a companion .sub file which my understanding is that it's just text with times and the video player overlays subtitles automatically from the info in the .sub file.
Hopefully that's useful info for ya.