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Originally Posted by ratinox
I'm afraid your burned audio discs likely are unrecoverable if you don't have the original, commercially pressed discs around.
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I'd never duplicate a commercial CD to CD. Certainly Rip to my server, for my own playback on my phone. The only PC written CD Audio discs I had were for playing back live recordings in 1994-1997. Better than cassette and the CD player was almost portable (A Philips Photo CD CDF100 I still have). I never had the battery pack, though I suppose I could make one. It also plays Portfolio CDs (A format killed by Kodak's pricing) and a rep gave me a demo one.
There are tape cartridges. Dubious if they work or the PC Drive is available, or there is an interface for PCI (I have some computers with PCI) or PCIe.
CDs of live recording to HDD. Turns out that an old HDD in a drawer lasts better than non-pressed CDs. I actually also have the original wav files on the current server and its backups
Last year I managed to copy some CP/M files off 3.5" where the drive had been used in place of a 3" on a PCW8256.
I've only lost a couple of important files ever, and no important files since about 1989.
Can't have too many backups.
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Because consumer CD-R media uses an organic dye which will deteriorate when exposed to oxygen.
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Sunlight is also bad as a customer found out in the early 2000s. He'd left the CD on a window sill, label side down
Maybe only a few weeks.
Even CD-Data is isn't a backup media. Perhaps MO disks are reliable. I've not used the computer kind since late 1990s and never had my own drive. My nearly 25 yo Minidiscs seem fine. As is the player which was lying in the corner of a friend's workbench unused for 19 years, so he gave it back to me a couple of months ago. Fortunately this works
https://web.minidisc.wiki/
He also gave me back the heap of blank discs I'd given him (still wrapped) and the one I tested was OK.
Shame Sony crippled the format. I doubt files on an SD card keep as well. A relative's SSD went blank 2 weeks ago. She'd not done backups. Seemingly dead to all tools. Laptop now has a new SSD. Will she do backups?