Oh yes, I've also lost two harddrives over the years, one a stand-alone one and one in a computer, both containing copies of LPs.
The only thing that hasn't let me down, so far, is burning LPs onto DVD blanks, as MP3s. But it takes a lot of LPs to fill one up, so you need copies elsewhere, and then you REALLY have to want to hear a particular number.
I started doing that because I thought that I was going into hospital, so I quickly copied a lot of CDs into MP3s on players, for listening whilst confined, and the DVDs were back-ups for those players.
I suppose I should try copying onto DVD blanks rather than CD blanks. There are a LOT of DVD blanks in the Op. Shops. I still don't know if it ia a coincidence.