@dramatictenor  .. post of the year! Thank you.
That is truly tragic...and why I buy as many original or as near as can be pressings of the old standards when I can find them, whether on Ebay or thrift stores. Once gone they are gone. 
I have copies of all the originals so if you are interested, let me know.  I will be giving them away at only $999.99 per copy!

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I think film preservation is somewhat ahead of the efforts of the music industry. Googling film preservation shows a long standing effort. Celluloid is notorious for it's degradation and I recall temperature controlled vaults being built a long time ago, along with archival steps.

All the best,