For DVD I tend to turn them all to vobs before burning them so i can have a better chance that it would read it.
As geno888 have mentioned, some dvd players can be very picky of their discs but in the case of authoring, it depends on the sand alone dvd player itself. Determing how it was programed, some might be able to play just with a clip on the CD/DVD. On the other hand some are programed to be strict with the structure. Personally, i cant rell by just reading the box, i would have to play with it a little to know.