[ARSCLIST] Audiodisc acetates with the while filmy surface

[Tom Fine <tflists@xxxxxxxxxxxxxxxxxxx>]

Is there any treatment that I can do to some AudioDisc acetates that have a milky white coating on 
the surface? Is it OK to use a non-alcohol cleaning solution or simple diluted ivory and a sponge? 
Will playing the disks with the substance on them ruin them? This batch appears to be wide-groove, 
probably 78RPM, do not know much else about them. They would date from the mid-50's.

-- Tom Fine