I have recently started collecting and I have a growing collection of old Sony Discmans. I am wondering if there are any easy repairs or cleanings that can decrease the amount some of them skip. I have noticed they skip less with some cds and sometimes just removing and replacing the cd helps...

Today, I just purchased a Sony Discman D-350 from a fella who bought it new and rarely used it. It is so beauuuutiful and totally mint. All accessories were included. I paid $120 CDN which is $75 USD...not too bad I'd say. So far I am loving its sound but have not had it long enough to review...