"PUO" (Prohibited User Operations) are what you are complaining about. Just sharing that if you look at DVDSHRINK on google.com, it can remove such.
I can't offer ANY support for such and I suggest you equip yourself with such soon before a bill in congress makes it illegal to skip commercials. At least its just a bill...
The children's DVD's I have seen have so many ads and trailers, that my kids have left the room by the time we get to the movie. The skip function doesn't work on most of them, thought fast forward usually does. If I am playing them on my computer, I can doubleclick on the actual movie scene to skip ahead. Is there a way to do this when using the DVD player?