So in essence, this solution already exists. Just not a direct path to it from old versions.
@kaizo, so they aren't ignoring... the improvement you are seeking is already there.
Everything that you are describing that you don't like that Emby does, to most, is the essence of what a media server does. It organizes and updates everything automatically. Seems like what you want is just a media viewer instead of a complete management system. Nothing wrong with that, it just isn't what Emby is. Setting everything to read only by Emby eliminates many of its finest features. One of my biggest use cases is as a PVR. That wouldn't be possible if Emby was read only.
There is a way around this that can give you the best of both worlds. Most OS have either built in or 3rd party the ability to POOL drives. Thus you can access all your media via one mount point or drive letter.
In doing this all you have to do is be a bit creative. For example on Windows with DrivePool I can set my actual media drives as READ-ONLY to everyone but the administrator (me who puts the media there). Thus no program ran as another user can delete this data. BUT THEN I add another drive to this pool that has WRITE access.
Now I've got a POOL that Emby/Plex (whatever) can write to for storing images, NFO, etc but can't delete or touch my actual media. Since you only allow one drive to have this WRITE access it's the only drive where the posters, NFO, etc will be stored. To Emby ALL THE DATA is there in one folder but in reality this is on different drives.
Now before an update or anything else I think could radically change my posters or NFO I can easily make a copy of that WRITE Drive parent folder. It's not going to be big like my media drives!
BEST OF BOTH WORLDS because you can keep your media locked while still allowing the use of NFO and locally stored posters (with an easy way to backup). No more fighting with Emby to get the features you want/need.
Edited by cayars, 22 January 2019 - 10:56 AM.