AVStoDVD Program Issue

Last year I downloaded AVStoDVD and it seemed to work. I tried it today to convert a .mov file from my Canon t4i, and it took an inordinate length of time to convert a 21 second test movie, and although it indicated that the output file would be 21 megs, the video file was over 200 megs!

Can anyone tell me what I'm doing wrong? I think I have the right settings, but maybe not...

Thanks,

Paul