I had the "unrecognized disc" issue for about a year and finally fixed it for $15. : r/PS4
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How To Fix The “Unrecognized Disc” PS4 Problem (Easy Fix) 2019 - YouTube
PS4 Unrecognized Disc HOW TO FIX! - YouTube
How to Troubleshoot 'PS4 won't read and ejecting Disc' Error - Appuals.com
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PlayStation Support Troubleshoots PS4 Disc Read Errors and Game Crashing - PlayStation LifeStyle
How to Fix PS4 Unrecognized Disc Error | Leawo Tutorial Center
PS4: How to Fix Unrecognized Disc Error Tutorial! (Easy Method) 2021 - YouTube