Can't Skip Certain Tracks on Some DVD's - Is it my player?

I guess you have all seen on DVD movies there are certain tracks you can't skip - Pirating warnings at the start etc etc.

Have noticed on a few Reg2 DVD's that they have started to put Movie ads before the film - and you can't skip them!! If I press skip or Menu I get a little DVD symbol and a red line. Only way around this is to physically FF through each one - a total pain in the ass.

I was just wondering if this is down to the age of my player, or do the rest of you have to suffer this.

I have a Pioneer DV-525 - Yeah it's old but it still does the job.

I would also just like to add that I don't think they have any right to be doing this - surely it is down to us, the consumer, to choose if we want to watch them - specifically as I have paid money for that item and they are getting free advertising out of me.