Hi, when this problem started I sorted it out by using a cleaning diskette, just once, without any cleaning liquid, it worked fine for several months, after that, the problem continued, and so I started to use the isopropilic alcohol, some drops in the cleaning diskette, worked for some more months, but now, it is not working at all, I bought a new cleaning diskette but it is not working at all, it seems to be an unusual quality problem of a genuine Sony equipment - as cars they should make a recall, free service to troubleshoot this annoying problem. Or, at least, to give sound and clear advice of what to do.

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