I've done a bunch of Blue Ray movies on Encore (from Premiere Pro) CS5.5. Usually I make DVD copies of the same projects too. It is routine. Now for the first time I combined a video timeline and a Slideshow all strictly according to Lynda.com's tuts. The DVD works fine but the Blue Ray won't play. Even on the computer (iso mounted through Daemon tools on ArcSoft Total Movie Theater or CyberLink PowerDVD) I get a message the film cannot be played. Again, the DVD of the same material and same Encore project plays everything just fine.