My SACD/DVD/CD players have started to skip so went off to Fry's to look for magic bullet remedies. They had two discs that claimed to do the job. One is a Memorex-branded "DVD lens cleaner" and the other was dollar more - forgot the name - but I've bought that before. The Memorex has a single row of little, flexible plastic spikes on the play side of the disc. The other, if memory serves, has rows of brushes in a helix pattern. I think that CDs use a different laser than DVDs and SACDs. Do the latter two use the same optics? Anyone tried both discs in a comparison test? I asked my tech about what he uses to clean the laser optics when he opens a player up. He said Windex or the like on a Q-tip. Might try that too. Any other suggestions or opinions?