As I have said many times before.. "we are trying to work on a solution regarding this" As it says in the FAQ "Mac users - please aproach with caution" I do not own a mac, nor sgi. We have done many tests before regarding macs and unfortunatly some of the movies work ...some do not. I am in the process of trying to gather all the old movies together that we may have and trying to convert to a usable format. But this may not be possible. We are trying to do our best... might take time but we will find a solution