Dvds were still 90s technology. They can have issues for sure. But they always did do it. It’s not a developing problem. Often, just bad manufacturing
But your bluray issue is more than likely an aging laser more than an issue with the disk.
You’re correct to say it’s better to backup, but honestly, blurays should be expected to last a lifetime if you aren’t keeping them in extreme conditions or going at them with power tools.
Dvds were still 90s technology. They can have issues for sure. But they always did do it. It’s not a developing problem. Often, just bad manufacturing
But your bluray issue is more than likely an aging laser more than an issue with the disk.
You’re correct to say it’s better to backup, but honestly, blurays should be expected to last a lifetime if you aren’t keeping them in extreme conditions or going at them with power tools.