I have a client with a large media collection that's been professionally cataloged (reel to reel, vinyl, cassette, VHS, Betamax, laserdisc, CD, DVD, Bluray and a bunch of film based movies/videos).  I think he told me there are over 700,000 items.

Even with climate controlled storage most of his laser discs show the artifacts and he said that many of the CDs & DVDs that were used to transfer old film & tape based content 20 years ago are also starting to develop problems.

I'm with the others who have suggested just ditching the laser disc player and replacing with a more current format.