Do any of the CD lens cleaning discs work?

Elizabeth's idea is fine if the player is built to keep ambient dust out. I use one in the car periodically, and it usually reduces the amount of mis-reads and skipping. Of course, the car is a very dusty environment.

My thinking is that a of lot environmental contaminants get on the lens (from cooking, smoking, etc.) as well as solid particles such as dust. The cleaning CDs probably remove some of these particles but I think it would take some kind of solvent to remove the film.

Yes it works for me.I clean the lens quite often with the Allsop and MoFi stylus cleaner #9 otherwise the sound gets compacted,less treble reach and soundfield.In winter with woodstove I do it almost every session.