Agree with Stuartli, under most circumstances it's not necessary. However I've seen some users who carelessly leave unsleeved CD-Rs exposed on desktops and load them covered witn dust, undoing all the care that CD drive manufacturers take to seal them. They could benefit from a CD Cleaner disk used dry to flick the accumulated dust from the lens.
They do get dusty with age though, no matter how well the drive is sealed, but the only way I've ever cleaned these lenses on older equipment is by opening up the drive and cleaning them properly when exposed.
The real problem is that the Philips designed the CD system the wrong way up with the laser lens below the disc pointing upwards, and this mistake was repeated by Sony with Minidisc. The other way round so that CDs were loaded label down would have left the laser lens above with dust not settling on it, and no risk of fingerprinting when sliding fingers under discs when removing them. The benefits of hindsight of course!
Well guy's I do not know if they make any difference,but the deed is done, and as I only paid ?2.99 at ALDI i thought it cannot do any harm.The directions say clean after every 10 hours of play.But after reading all the comment's I will just do it now and again.
Thanks to you all.....
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