I am wondering if others could give their experience with testing different parameters? I am using Dish Network through DV as source and using CQ at 480x480. I am trying to get no noticable quality loss in the smallest file size.

These are the parameters I am working with:
VIDEO
Quality=65
Max=2000-2600
VBV=80-224

GOP
P=4-5
B=2-3
Header=0-1
Max frames 0(auto) or 18

Any suggestions?

Thanks much.