I can't think of the last time I bothered burning a DVD to install in a long, long time. In fact, I haven't burned a DVD in ages.
Two of the last four burns of DVD media for me have had the drive fail... Most CD/DVD burners are now getting rather old.
On most my boxes the drives are standard, and that means I just have to get the box open, replace drive with another from a pile of replacement drives (since my replacement drives aren't new; they're as likely to fail next write anyway), but if the box requires a non-standard 5.25" drive I don't have, I don't replace it.
I no longer have DVD-RW media (and won't be buying any); and when I'm out of DVDRs I'll no longer be testing DVDRs too. I've been frugal with my use of DVDR since I got down to the last pack.