So last night I watched Suburban girl on BD via my PS3 coupled with an Onkyo TX-SR605. This movie has a DTS-MA soundtrack on it. Obviously with my setup if I choose the DTS-HD MA track I will get the core only. But usually I get a core of 1.5 Mbps. But with this movie you only get a core of 760 kbps. Why is that? Does each individual movie with a DTS-MA track have a different core? Seems strange.