no video timing display in Title dvd, display, command, problem, button

andy

anyone pls help me ,how to solve problem with a scenarist did not show timing display with some dvd player ex. panasonic.
I do my project with button in video (Title) but timing display do not show on dvd player display I don't know how to fix this, I have 18 pre command in video track. Pls let me know..More than one pgc in the title?