Exactly, but although it is something that easily comes to anyone´s mind, it has to be technically proved. The help you all, here and in other "forums" (fora), have given is priceless and made possible to me get at the present point. Although there are many questions to be asked yes, now I have a clearer understanding related to this wmv file. As more discoveries and/or conclusions are got, I´ll post them in case of being useful for you and others. Thanks a lot, for while!