hi, recently I went to a store and they had a give away of a bunch of records for free. I took a stack and found these records labeled "capitol recording discs". They didnt smell like a normal record, and didnt seem to be made of the same material either. So i looked these up and they were called "cardboard records" and only found one video on restoration, NOT cleaning. So what I was going to ask is if anyone knows how to clean them. Thanks
(Btw, I posted a pic of what they look lik on this fourm too)