I've used this type: (http://www.amazon.com/Allsop-ProLens-Cleaner-Players-23321/dp/B00000J1QM/ref=pd_sim_23_3?ie=UTF8&refRID=1VJ6KVWZXS0CRXP5RZSF) and this liquid with both a Q-Tip & the included disc: (http://www.amazon.com/DISCWASHER-LASER-LENS-CLEANERS-2-BRUSH/dp/B00I21X5A6/ref=sr_1_1?s=electronics&ie=UTF8&qid=1437755281&sr=1-1&keywords=discwasher+cd+lens+liquid) All have worked for me. I've had a couple transports(someone else's) that wouldn't read a disc enough to use the cleaning disc, and resorted to the Q-Tip/alcohol method too.