Hi Karl:

Do you know the history of this tape? Was it made in a rain forest or some other extreme 
environment? Maybe stored someplace very humid for some period of time? I'm wondering if there was a 
reaction between the slip sheet and the tape, which caused salt crystals to form.

My suggestion -- carefully scrape off some of the white stuff, and keep the slip pad. Then, 
carefully clean the outside of the tape pack with isoprop and re-shell the tape. Then, make your 
transfers. My bet is, the tape will play just fine. There might be some crud on the heads or, more 
likely, the pinchroller.

Separately, get one of your Cornell colleagues to do some chemistry research on the white stuff you 
scraped off. It would be interesting to know exactly what it is, and hear a chemist's speculation on 
what produced it.

-- Tom Fine

----- Original Message ----- 
From: "Karl Fitzke" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, July 23, 2014 7:17 PM
Subject: [ARSCLIST] White Tape Contaminant Part 2 corrected photo link

> Sorry, I sent the wrong photo link earlier this afternoon and you were likely locked out.
> Please try this:
> Best wishes,
> Karl
> -- 
> Karl Fitzke
> Audio Engineer
> Macaulay Library
> Cornell Lab of Ornithology
> 159 Sapsucker Woods Road
> Ithaca, NY 14850
> 607-254-1100
> [log in to unmask]
> Our Mission:
> To interpret and conserve the Earth's biological diversity through research, education, and 
> citizen science focused on birds.