Undersize with Megui.. why?

[Robertus]

hi guys i have a little problem

with megui i have ad undersize with some movies, especially with animated movie, i select 1DVD5, but when the encoding is finished, i have the .mkv undersize (mkv video + .ac3 audio)
below the command line that i use in megui 0.3.0.1015

program --pass 2 --bitrate 4474 --stats ".stats" --keyint 240 --min-keyint 24 --ref 5 --mixed-refs --no-fast-pskip --bframes 3 --b-pyramid --b-rdo --bime --weightb --direct auto --subme 7 --trellis 1 --partitions all --8x8dct --vbv-maxrate 25000 --me umh --merange 12 --threads auto --thread-input --progress --no-psnr --no-ssim --output "output" "input"

thanks for the help

[Sharktooth]

not a megui problem.
:search:
you're probably saturating the encoder. that bitrate is quite, an overkill for SD anime encodes. also you're using pretty high compression settings (vbv-max at 25000 is useless... you can remove it) that will make the problem even worse.
i'd say it's quite normal you get an undersize.
solutions in order of preference
solution 1: lower the bitrate (aim for a smaller filesize).
solution 2: lower the settings and use something saner.
solution 3: lower the min quantizer from 10 to 1 in the preset.