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Dear Rainer,

Shamrock tape from that period is almost certainly not subject to binder
hydrolysis; however, the squealing or squeaking (both appropriate) you are
experiencing may be due to mis-slittling. Shamrock always sheds oxide, so
stopping at intervals to clean it should be the only interruption to making
ana/d transfer into a digital editor and then stringing it together the
transfer. One man's opinion, anyway. Good luck,

Ciao,

DDR

On Tue, Aug 14, 2012 at 4:05 AM, Dr Rainer E. Lotz <[log in to unmask]>wrote:

> I have on quarter-track tape a stereo recording of the Marjorie Lawrence
> Opera Theater production of Scott Joplin's opera "Treemonisha", Shryrock
> Auditorium, Southern Illinois University at Carbondale, 17-18 November 1972.
> Unfortunately it is a Shamrock 1 MIL polyester 1/4 IN x 1800 FT type 041 -
> it squeaks and squeals (or whatever the appropriate word in English is).
> I was given to understand that such tapes could be rescued by "baking" or
> some other remedy, but I would not know how to do that.
>
> *Is there a better copy around somewhere...to replace mine. Perhaps on CD?*
>
> Thanks
> Rainer
>
>
>
> --
> Dr. Rainer E. Lotz
> Rotdornweg 81
> 53177 Bonn (Germany)
>
> Tel: 0049-228-352808
> Fax: 0049-228-365142
> Web: www.lotz-verlag.de
>



-- 
Dennis D. Rooney
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New York, NY 10023
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