Does anyone know where I can find some 4" to 4 1/2" cork or similar discs? I am currently using 3-3/4" cork coasters (this seems to be the common size) as label protectors when I hand clean old records, but they don't quite reach the edge of the label and I get a ring around the edge. Usually it's not a problem, but once in a while some of the older labels are affected by the moisture.
If you see something that you think may work, let me know what and where. Thanks.