I built a Blu-Ray .iso with VMS11, burned to a DVD with ImgBurn. It plays fine in my LG player (recognized as a Blu-Ray) but the Zoom function is denied. When I make an AVCHD disc from the same project then the Zoom function works fine.

Is this a setting buried in some menu? Why wouldn't VMS/DVDA default to permit zoom unless someone specifically wanted to deny zoom?

Or does the Blu-Ray spec ban zooming and only non-Blu-Ray content can zoom on a Blu-Ray player?