Audio static from Philips DVP 5140 DVD player?

I have a Philips DVP 5140 DVD player.
Whenever I watch a movie on it, the DVD player emits annoying TV static. I was using an old TV before, but it is doing the same thing with my new TV. I am also using the cables from the TV, which worked fine for the old DVD player.
I read somewhere that audio static might mean dust on the laser lens...is that my problem? If so, is there an easy way to fix it? If not, what is my problem?
Thanks.