I own a brand new IMac. I have not been able to d/l my movies from my Sony memory stick via a card reader except for one time. This clearly shows it can be done but I am unfamiliar with Mac and just can't figure this out. I assume I must be either in Iphoto or IMovie to transfer the movie from the stick to the Imac. Last night I got several windows telling me the format was incompatible. PLEASE HELP!!