I’ve had good success with makemkv for ripping both blu rays and dvs. I’ve not had good success making a duplicate disk though. It can be done but it’s been a very long time. I used to use handbrake in that chain but it got to be too much trouble. I resorted to ripping all my stuff, serving it up digitally, and only taking the disks out when nostalgia hit.

But ya - makemkv and handbrake used to get the job done a long time ago, you can search in that direction. Maybe there’s a newer better way.

This doesn't make sense. You can't seed a torrent from a Blu-ray. I mean technically you could, but you'd only be able to do one per drive at a time.

And the storage density of a drive is much higher than a Blu-ray disc. You can fit far more movies on one hard drive.

Also keep in mind that burned discs have a much shorter lifespan than commercially pressed discs, like 10-30 years. Commercial pressed discs should last 100+.

No idea why you would want to get precious data out of DRM-riddled physical media and then somehow devalue it again by putting it back into that format.

HDDs make more sense I suppose

Maybe look into the AVCHD format? It's a set specific rules for video files and a folder structure that allows a burned disc to be read by a conventional BluRay player.