I've heard those comparison problems were due mostly to improper mastering on the part of the studios. As for the rest of the difference, double-layered BDs will be coming before the end of the year and Warner just recenty anounced BD titles that will use the VC-1 codec. This winter is when the real "war" will begin to take place. I doubt any real victor will be known for years to come though. Since both formats are so widely supported at the moment, they might end up existing side-by-side for a long time. That wouldn't bother me too much.