I thought the failure rate only went up a lot if you burned at very high speeds? I seem to remember having problems with burning an OS to a DVD too fast.
Depends on your drive and the media. Modern drives in good shape with any media will have like a 90%+ success rate. I don’t think my MacBook has ever had a failed burn that wasn’t because the disc was pre scratched. But older drives, and older media were sometimes a lot less reliable.
Sometimes modern stuff sucks too. The drive in my desktop will fail to burn a CD 100% of the time if I burn it at high speeds, but only because it’s shit and the disk falls of the spindle.
But I’ve got some ancient drives that still burn reliably at their highest speed. Mid 2000s was probably peak of CD and DVD burning reliability, and that’s why I use machines from then to do all my burning,