Hello, again, everyone.
After searching and searching and reading a bit on a few websites and the book "Voice and Data Communications Handbook" by Regis J. Bates and Donald W. Gregory, I've finally given up.
I'm just not getting what this codec is for, or specifics about what a codec, in general, truly is. Would someone care to explain in a sort of dumbed down way? Also, would you kindly provide some reference as to where I can download it for so that I can use it with ffmpeg specifically (trying to decode to .h263 from .avi and vice-versa, for example). Hope this codec is open source and free/legal...