We have found out that your probably shouldn't put PS5 discs into your PS4 console, because the system won't read them and the disc can get stuck.

Your PlayStation 4 could soon stop playing digital and disc games. Here's how to fix the current internal clock issue.

If you are getting the problem on your PS4, learn the things that you can try to fix it in this guide. What causes Call of Duty Modern Warfare Disc Read Error 3.1?