Thanks Douglas. I think Sony should have considered another designation so as to avoid confusion between 24pA and 24p Advanced.

Its actually 24A- there's no P in it even though it is progressive.

Thanks! I've been in the 60i world for many years and am still tying to figure out the 24fps world. More technical stuff to cram into my brain. The good news is that there's a great deal of old stuff that can leak out with out being missed.