hey guys

I was wondering is the laser part of let say a Sega Cd is easy to fix?

Because im a casual Vintage gamer & it always scares me that one day will come
that it's gonna be rarer & rarer to get a working sega cd / sega saturn / jaguar ec....... & fixing things will become Non avoidable.

so i was wondering if it's possible to fix laser (bad reading, skipping) ,

there must be Laser parts that sales like generic brand ?
and you can just swap the defective part?

let me know on this thanks!