I have a folder of MP3s, some of which date back to 1999, just a few years after the format was popularised. Most of them have utterly terrible names (think RIDEONAM.MP3). I think at this point they might even survive the heat death of the universe. And they’ll still be terribly-organised.
Yeah I’ve been in that same boat. My music collection is made up of stuff I stole off Limewire, ripped compilation CDs, soundtracks, stuff I recorded off the radio…most are mp3, I’ve only started using FLAC last year, ID3 or other metadata stuff is completely inconsistent or missing.
There are services that will identify the track based on examining the audio and provide data for it. I used a piece of Linux software called EasyTag for that purpose.
I was telling someone just yesterday about limewire when one of my playlists popped up the song I had downloaded 22 years ago.
I may have to try easytag instead of manually searching, right clicking, adding the data to the properties tab.