I use Kodi on an Nvidia Shield TV Pro instead of Plex so I don’t have to transcode. My NAS is an 8-bay Synology DS unit on a rack shelf, it has bigger fans than an RS unit so it’s quieter.

The analog video on laserdiscs is encoded as PWM which is on-off like digital, not analog grooves like a phonograph record.

Or $6,495 for up to 16mm: https://www.moviestuff.tv/retroscan_816_2k_scanner.html

If you want to DIY: https://moviestuff.tv/