No disc error showing up-takes 20 tries to bring up dvd
Maybe the laser is unable to focus on the smaller pits and lands of a DVD disk but can see the relatively large pits and lands from a CD just fine. This may be solved by using a CD/DVD cleaner disk. It's a disk with small brushes on it that attempt to brush dust from the laser's lense. They don't always work but that's what I'd try.
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