There are still people out there, who are very intimidated by avisynth and how to use it to prepare their sources. So I compiled example scripts and tried to break the necessary steps down into easy to follow instructions. Everything is better and more detailed explained in
this part of the A&E's guide - The
'A&E's technical guide to All Things Audio and Video' contains a lot of information and is maybe overwhelming, if you just start out with Avisynth and don't feel so confident. But you should follow it step for step while installing the software you need, which is compiled
here in AMVapp.
( Using Avisynth to prepare your source with example scripts )