I'm still trying, but I can't get Popcorn 1.0 to run properly in Tiger. It opens fine, but when trying to select a Video_TS file to burn it just exits. Re-install doesn't change anything and I can't find anything on the Roxio site. For some reason Popcorn never asks for the serial number when re-installing, just remembers it from before. Where does it hide that? Hmph.