Just as an FYI, there's another video converter out there by iskysoft. Mac and Win. Voltaic files are HUGH. iskysoft are much more reasonable. It's alittle clunky. I haven't been able to get a smooth conversion from my 16:9 video. It'll convert it but it squishes the image. And the parameters setting are a bit confusing. I haven't tried it with 4:3 video yet.