2-Pass not giving me correct final size

[LoKi128]

I don't know if I'm doing this right or not, but I'm having problems getting the 2-pass encoding give me the right size output. Everything is set to the default values. Here is some info on my setup:

VDub 1.4.10 & XviD May 22, 2002 (Koepi)

Clip
f8 trailer by Jason Wen (1minute) (352x200)
f8.mpg - about 8MB

1st pass
- everything default + lumi masking
pass1.avi - about 10MB
video.stats - 120KB

2nd pass int.
- everything default
- desired size: 5000KB
pass2.avi - about 15MB

Please let me know if this is a known problem and if it is fixed in a newer version of XviD.
Thank You!

[soujir0u]

Did you turn on lumi masking for the 2nd-pass too?

[LoKi128]

Yeap. The only difference between the passes was that I selected the 2nd pass option and enter the desired filesize. Did not change anything else.

[ivan_alias]

Please don't take this the wrong way... But are you sure your clip has no audio in it?

[LoKi128]

DOH!

There sure is... and without the audio the file is about 5MB (what I wanted).

The strange thing is that in the original MPG, the audio is Layer2 96kbps, but on all the passes the audio is PCM. I had Direct Stream Copy set for the audio during all the passes.

When did the audio get changed?