True. This tape is acting differently than any other tape I have
transferred before, video or audio. It is not back-coated, squeals, and
sticks. It makes me think that maybe our assumption that SSS is caused
mainly from the back-coating is not necessarily true all the time. This
tape so far behaves just like a classic SSS tape. And being so thin makes
handling it even harder. I have placed a batch of 14 reels in the oven
overnight. 10 blue and 4 green reels. I'll check them tomorrow and report
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On Tue, Nov 3, 2020 at 4:41 PM David Crosthwait <[log in to unmask]> wrote:
> In the world of videotape recovery, non back coated tapes have been found
> to be sticky just like back coated models. It depends on the stock. 3M 399
> is an example of sometimes being sticky. Thus, tape baking usually is the
> Best Regards,
> David Crosthwait
> DC Video
> Preservation Level Videotape Transfers and More!
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> > On Nov 3, 2020, at 6:26 AM, Shai Drori wrote:
> > Hi Corey
> > Thank you for your advice.
> > My inclination was to try baking even though the tapes are not
> > First test seems very promising. Two reels tested and played fine. The
> > emulsion is different from the green and red reels so I see no pint in
> > treating the good reels. I don’t know who manufactured the tape for Nagra
> > but it looks to be high quality tape.
> > On Mon, 2 Nov 2020 at 21:36 Corey Bailey <[log in to unmask]>
> >> Hi Shai,
> >> I would consider baking the blue reel tapes. Although I save baking as a
> >> last resort, layer-to-layer adhesion usually requires careful baking.
> >> You may want to lubricate the red & green reels if you have any kind of
> >> oxide issues at all, including having to clean the transport more than
> >> usual.
> >> Although you are a professional & plenty qualified, you may find some
> >> useful information in two articles that I wrote:
> >> http://www.baileyzone.net/LUBRICATING%20POLYESTER%20AUDIO%20TAPE.htm
> >> Be safe,
> >> ~CB
> >> Corey Bailey Audio Engineering
> >> www.baileyzone.net
> >> On 11/2/2020 4:17 AM, Shai Drori wrote:
> >>> Hoping to find some answers from the group about a problem I am facing.
> >> I'm
> >>> digitizing a few hundred Nagra SN tapes. These are reel to reel tapes
> >>> the width of a cassette. There are three lengths, red, green, and blue
> >>> reels, with blue being the thinnest and longest tape
> >>> the red and green tapes play fine but the blue tapes are stuck so each
> >>> layer is glued to the layer before it. When I try to play the tapes
> >>> squeal and the magnetic particles sometimes are removed from the base
> >>> stay stuck to the back of the layer before. These tapes are not
> >>> black-coated and resemble really thin c-120 cassette material.
> >>> Any suggestions are welcome.
> >>> Cheers
> >>> Shai
> > --