I mean, honestly, I don't think either my dad nor I did any research on the quality of the DVDs we were buying. I think, for whatever reason, we just assumed that there wasn't a fundamental difference between the cheap and expensive stuff. Obviously we should have researched it more if we were using it for preservation.
I keep a USB blu-ray drive around because I like to have rips of my physical media, and it seems to read CDs just fine. None of my computers have a CD drive built in anymore.