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Old 04-21-2019, 04:04 AM
Banksiaman is offline
Join Date: Apr 2012
Location: Australia
Posts: 985
There is now consensus among AUDIOVISUAL archives internationally that we will not be able to support large‑scale digitisation of magnetic media in the very near future. Tape that is not digitised by 2025 will in most cases be lost forever.

This is from Deadline 2025, the Australian National Film and Sound Archive's discussion paper on the topic. While it focussed on the digitisation of video collections, the underlying technical issues for individual tapes are as Kenobi sets out. Your tapes are deteriorating while you are reading this. Precious ones may be recoverable for a while by specialists but waiting any longer is not going to make it easier or cheaper.