Hello Graham:
You are right. Usually, when you press a start button on a menu, the movie starts immediately.
You may also be right about compatibility issues with DVD/CD burners and DVD players. Although there is no test (not to my knowledge) to see whether a burner and DVD player have compatibility issues. I also played the DVD in two computers with Windows Media Player v11, and the same thing happened ---- lag-time in the start of the movie.
To be sure, all of my projects do play on DVD players. It is just that particular issue

irks me a little.
I should also tell you that these were
motion menus. This could be the factor in the movie file
waiting for the menu to complete its cycle. (it's just a theory).
Maybe what Corel needs to do in their next upgrade is investigate the issue of movies starting immediately after start button is pushed. Maybe they develop a program string to eliminate ¡§lag-times¡¨ in movie starts.
Montgal55_NYC