Just to add to my question - what really drives the kbps speed? I have the various clips I mentioned previously (about 14) and they vary from like 80000kbps down to 21000kbps. However, I rendered them all at the same quality from AE.
I am doing a final render of a full length movie. It consists of about 14 separate hi res clips that have bit rates ranging from 21K to 30K and when I render the entire thing in DNxHD for some reason I'm getting poor quality.
I'm using Premiere Pro. Any ideas on what I should do to get the very best quality?