I've just done my first conversion to mp4 using VH. The file was an SD movie avi file ~ 700mb. I set VH to appletv, go nuts, h.264, 2pass and the resulting file is over 2GB. I've just played the files side by side and can see no difference in quality. Does anyone know how much I can drop the VH settings by until and keep the quality or do i just need to do trail and error?