J-Wo my friend,
i read another posts that you got problems with
headac3he and i sometimes got it too.
sometimes,when i convert from ac3 to wave
and convert this wave to mp2,headac3 see the file as corrupt!
don't know why it happen.
but believe me,if you encode with headac3
the sound is better than bsweet.
in this situations i use besweet.
in besweet the best normalization that i got was using
normalize to xx% !
i don't like to use 100% cos sometimes the sound "clips".
for me the ideal is 97% but nothing is better than test little samples.
ps:
use besweetgui,turn besweet very easy to use.