1. Read the https://wiki.redump.info/Getting_Started_Guide and other wiki articles to learn about redump.
2. Make an account at this forum, login to https://redump.info/ and submit your disc dump metadata and logs via https://redump.info/disc/submit (for both new discs and verifications).
3. If you need help with dumping discs, make a post here about the issue/disc, or reach out via the VGPC Discord: https://discord.gg/AHTfxQV