You've got a couple options that make sense:
1. Figure out the actual capacity and only use it for that much data (usually somewhere between 1-4GB, oof)
2. Toss it and consider it junk, it pretty much is either way.
Once again I fell down the martial arts rabbit hole and am plumbing the murky depths of the internet's various martial arts and fighting crafts echo chambers.
If you're not actively involved and only get up to speed every few years or so, you can see the tide of public opinion flapping worse than my dong while I'm skipping naked down a hallway.