Agree with Jgiacalo - these players have no isolation - will skip if they are picking up anything in terms of bass feeding back into themselves.Try isolating it and see if the problems go away - simple experiment is to buy/borrow some longer cables and move the player away from your other equipment - if the skipping disappears - then you know what the problem is.For this test the quality of the connecting cable is of no importance - cheaapies will work just fine.
These are still outrageously musical players.
These are still outrageously musical players.