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I posted a message with as much information as I have available earlier today. > There is some information available for this. As far as treating > obstinate tapes, I am trying to maintain an up-to-date resource on the > subject. > > The best international standard so far that I've seen is IASA TC-04 > and it's available online. > IASA's TC04 on audio preservation is available online (and for a fee > in a print edition) > http://www.iasa-web.org/tc04/audio-preservation > > I introduced th concept of cold playback (and hopefully explained it > well) as well as attempted to cover the then state of the art in tape > degradation in my paper on tape degradation that was originally > presented at the Audio Engineering Society's 121st convention in > October 2006 in San Francisco was published in the ARSC Journal in the > Fall of 2008. It is available here: > http://www.richardhess.com/tape/history/HESS_Tape_Degradation_ARSC_Journal_39-2.pdf > > > I attempt to keep a current (as we know it here on this and other > lists) log of what tapes degrade in what manner and how to recover them. > http://richardhess.com/notes/formats/magnetic-media/magnetic-tapes/analog-audio/degrading-tapes/ > > > There may be specific applications to various scenarios, try the > search box. I think there are now over 100 pages there--both static > and in the blog. > > For squealing Shamrock, I have a specific article on another method of > recovery: > http://richardhess.com/notes/2007/11/08/success-with-squealing-shamrock-031-tape/ > > > Finally, there is a blog category tag that you might wish to browse. > The categories are listed below the static pages in the right sidebar. > http://richardhess.com/notes/category/archive-operations/tape-aging/ On 2012-08-14 7:07 PM, Jan Myren wrote: > HI! > > Have by now started to play old tapes and found that the older the better. The tapes form the 60's & 70's of Agfa, Basf, Scotch etc plays just very fine. > Some tapes from the 80's & 90's are however very troublesome, or just impossible to play. Among them are Ampex and Agfa. The tape itself acts like a "glue" and makes the whole tapemachine stop. > > Are there any list of such trouble tapes, so I can avoid those brands and types when purchasing tapes second hand? > > All the best > jan > -- Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.