Bluray to .avi video bitrate issue

[gartzo]

I tried to convert a bluray disc to .avi 720p and I face video bitrate issues. On two-pass mode, I selected average video bitrate 3800 kbps in 1280X720 resolution but the output ended to be roughly at 3100 kbps video bitrate.

I tried 2 times with Megui (via File Indexer) and 2 times with Virtualdubmod (via Directshowsource). Both converters gave approximately the same results (regarding video bitrate).

Could someone enlighten me to do sth in order to achieve bigger video bitrate? Should I experiment with the max and min quantizers (I used h.263, I don't want to use a custom quantizer)??? Or sth else???

[Selur]

assuming you use Xvid for compression:
1. adjust Overflow Treatment Settings (i.e. all to 10 or 15)
2. set min Quantizer to 1