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Sounds like you have a PH problem. My experience as an historical archivist would suggest using a neutral/acid free paper between your cds and an acid-free storage box. Acidic PH is the opposite of your problem (too basic) but you don't want to switch fungus for a corrosive. Keep it neutral. http://moneywisdom-gold.blogspot.com/ -----Original Message----- From: Lou Judson <[log in to unmask]> To: [log in to unmask] Sent: Tue, 27 Jan 2009 4:26 pm Subject: Re: [ARSCLIST] RV: [ARSCLIST] Cleaning of grooved discs- how about fungus? Thanks. I was being slightly fascetious about CDs, and by glass and crdboard, I meant the substrate of 78s... I did not realize you didn't know! Interesting challenge. I only do tape so sorry I can't help either. Good luck! Lou Lou Judson • Intuitive Audio 415-883-2689 On Jan 27, 2009, at 3:48 PM, [log in to unmask] wrote: > Lou: > > I don't know exactly what they have other than some are older > Edison 78s and > most are more modern 33s. I didn't specify, as the thread I was > following > up on was talking about vinyl or shellac platters-not CDs or glass > masters. > > To be a little more specific, this is an archive that wants to job > the work > out. We don't do platters at our lab (We just do tape- and the > occasional > CD, DVD or MO). They have about 50 boxes of "records" with fungus > and are > looking for potential vendors to handle the cleaning. As an=2 0> archive, they > are also particularly interested in saving the album covers and > labels as > well as the discs. They consider the entire "package" as worth > saving-not > just the recorded content. Also, I don't know just how many discs > they have > in the boxes but I figure, maybe 10 to 20 discs per box? 50 boxes > could add > up to a reasonable amount of cleaning and the archive really > doesn't want to > do this in-house. > > Peter Brothers > SPECS BROS., LLC > 973-777-5055 > [log in to unmask] > > Tape restoration and disaster recovery since 1983