Hum, this is a cool comparison of Xvid to H.264, but both of these
tests were encoded with Mencoder (D-Vision 3.1.1). I don't see how
this is a QT7 comparison? I would like to see the results of the
same test comparing QT7's encoding and Mencoder D-Vision 3.1.1.
Agreed. That said, the H.264 results are clearly (to me) better.
The problem with these tests is like you said, but maybe even worse -
since there are a variety of both DiVX/Xvid and H.264 encoders, as
there should be, it's difficult to extrapolate blanket impressions of
all H.264 and DiVX encoders from a single encoder test. Even
comparing Apple's encoder will only tell us about Apple's encoder -
and of course, using Apple's MPEG-4 encoder would make the results
look even more lopsided.