............
Short story, use
SUPER. Easiest to use, and still providing very high quality (though not as tinkerable with as the more specialized authoring apps).
MediaCoder isnt bad either, but the convenience of SUPER and its integrating of various separate apps in an easy to use package makes it the more recommended one.
If you want the
very best quality (unnoticeable to the eye, then Pegasys has a commercial hughgrade mpg2 encoder for around 69 $, if I remember correctly)