How can I fix my black Playstation2 console?

When I load a compact disc and press play on the controller the 1st track will play for about 10 seconds and then start to stick. I have cleaned the inside of the console until there was no dirt at all. I have cleaned all my music cd's and still the problem persists. I have no problem playing dvd or game discs whatsoever. If I had to make a guess I would say that the laser/magic eye may have an intermittent fault, but yet I don't have the same problem with dvd or game discs? Can anyone help? Thanks.