As far as the menus, you can do anything you want but it depends on how far you want to go. You could just remove the feature in question, the feature and the menu's ability to select it, you could remove the ability to scroll over it as an option, or you could completely redesign the menu leaving the option in question out.
The last being of course crazy and complicated.
ADM: I'm assuming when you converted you did it manually. Didn't the ripping software give you a delay number you could use when reauthoring the disc?