I've recently become rather more impressed with conservatively sized video files. Mostly, because I've no idea how to make them happen. I have some .ogm files that I wish to burn; however, my burning software cannot handle them. Therefore, I've been trying to convert them to a friendlier format; however, at best this more than doubles their size, if not worse. Where do the wonderfully small .avi video files, with excellent quality, come from? How are they made? What software do I need to make them? Any tips would be highly appreciated.