The laser could be out of alignment or it is vibrations mentioned above. I would definitely bring it in to a tech, if still under warranty and have it checked.
cd player skipping
While playing cd's from an NAD C540 cd player I'm hearing alot of skipping, jumping and breaks in the the music that are forcing me to stop listening. I keep my cd's clean (I don't touch the surface), and I clean the lens with one of those cd Lens cleaning disks. Nothing seems to work. I could use some Ideas. Thanks.