On Mon, 3 Aug 2020 09:38:54 -0700 (PDT), abrsvc
wrote:

I would test the DVD player with a "stamped" DVD. If these also fail, I would suspect the optics that may be failing. DVDs will fail to read far sooner than CDs on the same player if the laser is starting to fail.

Commercial DVDs read fine.

I had an issue at one time with the W7 unit, where
it stopped recognizing audio CDs. (CD and DVD data oK)
Got out of that one, somehow.

RL