Monday, October 26, 2009

Re: [Avid-L2] Somewhat OT: Is it better to store (digibeta) tapes in rewound ...

Well, If you want to talk about open reel tapes and analog masters...

The other important reason for storing tails out was "Print Through" It was considered less severe because tails out print through came after a loud section, and heads out caused print through before the loud section.

The following is quoted from an AES Technical Bulletin A011194 (link follows quote):

"There are a few steps you can take to minimize print-through. The most common is to store your tape tails out.
Normally, the outer layers of tape from the printing signal will receive more print-through than the inner layers,
since the signal must reach the top of the oxide coating to be noticeable. To reach the top surface of an outer
layer of tape, that signal's magnetic field needs only to pass through the
base material. To reach the top surface of an inner layer of tape, it must pass through both the base material and
the oxide. So by storing tape tails out, the strongest print-through will be postprint. This is less offensive than
preprint, because post-print will be masked by the recorded signal on playback."

http://www.aes.org/aeshc/docs/3mtape/printthrough.pdf

(My first job was as a sound recordist).

Dave Hogan
Burbank, CA


________________________________
From: "Quinatwork@aol.com" <Quinatwork@aol.com>
To: Avid-L2@yahoogroups.com
Sent: Sun, August 16, 2009 5:02:32 PM
Subject: Re: [Avid-L2] Somewhat OT: Is it better to store (digibeta) tapes in rewound ...


I remember in the Army, we were always supposed to send tapes on to the
next station "tails-out", whether they were reels or cassettes. The logic was
explained that tow factors were involved: 1- the receiving station would be
able to properly tension the tapes after shipping, 2- if a tape were to
have a mechanical issue, it would be in the tail and easily spliced, versus
making the head shorter.

Me, I always tried to store tapes rewound. Even had a betamax rewinder to
save wear on the decks. Had to watch it with old Red shell Scotch tapes, as
it would snap the leader rather than stop.

Of course, you mileage may vary.

Quin

Quinton Lee, MIS
Q.A. Lee Consulting
Helping People and Technology Work Together

In a message dated 8/14/2009 1:06:33 P.M. Eastern Daylight Time,
natjencks@gmail. com writes:

Is this really true? I've never archived much on tape, but I'm not
sure I can see any reason why it would be better to store the tape in
a rewound position, other than to avoid confusion for the next person
to use the tape...

[Non-text portions of this message have been removed]



[Non-text portions of this message have been removed]

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