convert quicktime into mpeg2

I convert quicktime files into mpeg file with AVS video convertor, but I had several problems because I don't know how to convert it (see the picture I've attached wih this file).
So I've made several tests changing frame, bit rate ......... and there was several problems

- sometimes the movies are not looping

- There is a lot of problems of synchro using collage option.

How can I configure the soft to be really optimal with DL2s ???????