Can anyone advise me how to clean new CDs, please? Some new, full-price CDs I`ve bought jump or won`t play. I don`t think it`s my player (Krell Evolution 505). I blame the CDs themselves. I`ve tried wiping them with a soft lint-free cloth - no good. I feel like scrubbing them with wire wool in the washing up bowl, but has anyone got any less drastic solutions? Many thanks