Do CD scratch removal kits work? If not than what really works

Does someone know a fix for scratches on a CD? : r/mildlyinfuriating

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Fellowes Inc/CD/DVD Scratch Repair Kit, For CD, CDR, DVD, DVDR and DVDRW / FEL99763 : Electronics

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JFJ Easy Pro Video Game, CD, DVD, Blu-Ray Repair Machine 110V : Electronics

How exactly does burning CDs work, especially when you do it from home? Why does a scratch affect how the CD reads the information? - Quora

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Can't a Disc-RW directly be overwritten instead of being blanked first? - Quora

7 Tricks to Fix Scratched CD and Recover Data