@mikehindleuk The hard part (read: expensive) is picking a NAS and enough storage for your needs....and then doing the admin for it, as you take on the role of network engineer.
The next part is getting the movies off the discs (I use MakeMKV and Handbrake for that). It's a bit of fun though.
I wrote this a while ago, which may be of interest: https://reedandpickup.com/2024/11/16/physical-media.html