First it was a stuck disc, but DVD player still not reading, where to go next?

Just got a Memorex MVD 9”, knew the DVD player wasn’t working but felt like taking a stab at it. First thing I found was that stuck DVD, got it out and put back together. Player still didn’t read it! It said like “incorrect disc” on the screen. Some people said it could be dirt on the lens or a weakening laser that couldn’t read the disc, so I tried taking it all apart and cleaning that up but I haven’t put it back together to see if cleanliness was the issue.

Ultimately my two questions are this: is it feasible to buy a replacement DVD player like in the photos and hook that up easily? Or should I just get an adapter to a DVD player I already own, what kind of adapter would that be and where to buy?