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Re: [ARSCLIST] CLIR document/ Leader



Danny,

This is my understanding as well. I also find that when I find old paper leader, it is often brittle, unwieldy and slippery --and a bad friend of adhesive, as Tom Fine points out.

However, I admit I do not know how to look or listen for potential problems arising from electrostatic charge in leader tape. If anyone has found these problems, I think the class would probably like to hear about them.

Marcos

--On Friday, March 31, 2006 4:15 PM -0500 Richard Warren <richard.warren@xxxxxxxx> wrote:

Hi,

As I recall, general wisdom in ARSC suggests that for archives the use of
NO leader tape at all has always been recommended for tapes to be stored,
since attaching leader(s) involves the use of splicing tape, another
material to be avoided as much as possible. Obviously one must deal with
splices that come in on tapes; but except for attaching leader or blank
tape temporarily to allow capture of beginnings and endings on recordings
lacking sufficient unrecorded "slack", why ask for trouble ?

Richard

At 03:56 PM 3/31/2006, you wrote:

I wonder about the value of the recommendation to â??replace plastic
leaders with paper leadersâ?? (Capturing Analog Sound for Digital
Preservation; 1.1.2.3.3 Leader).

I think that the concern about â??electrostatic chargesâ?? may be
overstated (and probably has its origins from another era, perhaps when
PVC was used a leader tape base).  Using modern anti-static polyester
leader as a â??replacement leaderâ?? (not to mention the high coercivity
of magnetic tape in general), makes the electrostatic charges from
leader tape issue, I feel, almost negligible.  Video shares many of the
same preservation issues as audio and Iâ??m not aware of this â??paper
or
plasticâ?? question ever coming
up in that field; video preservation specialists use polyester leader and
have done so successfully for decades.  Is there a distinction between
magnetic audio media and magnetic video media (or even data storage tape,
another magnetic medium that uses polyester leader) that Iâ??m
overlooking that would require paper tape to be used in audio?

Certainly too other arguments could be made for not using paper leader:
it is less durable than polyester, it will absorb moisture, and
-particularly with non-buffered paper, it becomes brittle and therefore
may fail to maintain the tension on the tape pack (when tacked down at
the head or tail) needed for long term storage.

Feel free to set me straight.

Best,

Danny


Daniel Sbardella The New York Public Library for the Performing Arts 40 Lincoln Center Plaza New York, NY 10023

212.870.1609



Marcos



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