My DVD and CD archives keep crashing my finder
I'm trying to find some old files and am having loads of problems. Many of my DVDs and CDs that I archived files on are running crazy slow, are hard to drill down through, crash my finder, can't open, or my iMac spits them out! I really am getting worried, the extent of unusable archived CDs is scaring me. I did the drill, kept on top of archiving files in duplicate, now I can't open half of them! Any ideas? A little desperate...
On a Late 2009 27" iMac i7, Sierra
iMac 27", macOS 10.12