OK, thanks guys!
Couple questions, if you would...
How does a "engine with constant compression ratio" improve quality on a longer movie (I would have guessed a variable rate with weight lent to 'action scenes' was the route you were headed)?
And, what exactly is meant by "Removal of unused padding data in the videostream"? I'm curious as to what 'issue' this addressed, and/or how much space it clears for movie-only?