I use a product called "CD Clean-It Kit" by CD 2000, Inc, Palatine, IL. It's inexpensive yet recommended by one the local high end hi-fi stores here in central NJ (The Sound Exhange, Somerville, NJ) who also sells literally thousands of pre-owned and new CD's. CD 2000 Inc also makes a CD Fix-It Kit for scratches. Works great. Go to the website (cd2000inc.com) You'll see testimonials and endorsements for this product. So simple.