Trying to revive a dead Zelda disk, any tips?

[boye]

I have a dead Zelda disk that I recall working like a charm until IIRC, I tried to boot a Castlevania disk, which failed, and my once-good Zelda disk now just throws Error 22. It's something with the disk, because I have a Murasame disk that works like a charm.

[theoakwoody]

https://youtu.be/Gg2ytfUfHG8

This guy does the exact thing you just asked for help on.  Unfortunately,  you'll need to mod you disk drive and make a serial cable that can hook up to a pc.