My shiny new box set of the Alien Anthology on Blu Ray arrived the other day. Of course, the first thing I did was fling "Alien" into my BD drive to rip it to my Mac. This went fine, but I got the dreaded "No Valid Source Found" message in Handbrake. I'm getting a little irritated. Currently I have three movies that all show the same error in HB: Alien, Serenity and The Bourne Supremacy. I'm ripping Aliens right now, so I'll post if I get the same error. But The Bourne Identity loaded into HB without any trouble, so I do not know why there is a problem with these movies. Any ideas? Using a registered copy of Make MKV 1.6.3 to rip and HB 0.9.5 to encode.