Okay So i downloaded and use it for my first file which was a .wmv file. It worked perfectly. Then I try converting .avi files and it gives me the audio conversion error where it tells me to check if I have the right audio codecs. The thing is I do. I've downloaded K-lite codec. So anyone know whats wrong. I have Avisynth 2.5 and K lite codec (which comes with ffdshow)