Digitizing my DVD collection for personal use

I'm also interested in the same. Otherwise if you have a Windows computer laying around it is pretty easy to do it natively.

I hope it’s still just as accessible as it was years ago but Handbrake was always perfectly usable with VO. It’s very customisable too. Good luck.

As I know, Handbrake is accessible but DVDs have DRM protection and handbrake can not breakthrough the DRM. Any suggestion?

I think this is dancing on the edge of legality. To be honest, If I were you, I'd find a source of DRM free versions of your content and download it. You'll be able to find solutions elsewhere as such things shouldn't be spoken about on here.

My view is, if you've bought it you should be able to keep it in whatever format you wish, EG, I should be able to listen to my audible books on any mp3 player etc.

The only other thing I can think of, which will eat up your memory pretty quickly, is create ISOs of each disk and mount it as a virtual drive, though I have no idea if this sort of thing would work.

I suggest looking for advice in plex forums. Though they won't be able to help with the accessibility side of things, they may be able to give you an answer on how to convert your media into a better format.

The program makemkv works to get a drm free mkv file of a dvd, and handhrake can be used to convert it down if the file size of the mkv is too big; usually around 7-9 gb for a dvd, 30-40gb for a blu-ray.
The GUI for makeMKV didn't used to be accessible, but I'm pretty sure there have been improvements. If not, the command line version still exists and is accessible because it's a command line program, although less is able to be controled I think.

VLC also works to strip out the DRM, so that handbrake is able to do its stuff.

Does makemkv retain the extra audio tracks such as audio description, IE, importing the file to a plex server, will there be options for different audio tracks? If so, I forsee a lot of second hand blueray purchases in my future.

Yes it does do this.