Just installed Emby (Nice media server by the way. I like it better than Plex which I've used for years).
I use a flat mp3 library structure. My mp3 metadata is all customized using Mp3tag V3. For the most part, the fields Artist, Album artist and Album are identical, i.e., the name of the artist. (Don't ask!) For artists that have a lot of songs, I do break out the songs into their respective albums by inputting the album name into the album field. I never use metadata scrappers.
Mp3tag allows one to input album cover artwork. I can have one image for the artist and various images for the various albums and the artis as well as album images show up using Windows Media Player, iTunes and Plex.
In Emba, there are no album artists or artists images showing up. But once you click through to the actually mp3, the album artwork shows up.
So I'm adding artist images manually to the Artist/Album Artist icons and, although tedious, it works.
Here's the thing.... I'm going to be replacing this old desktop with a nice new desktop (well a re-furbished old one if the truth be known.) My concern is that I get Emby all looking great on this computer and when I install Emby on my new one and setup the path to my music, these manually uploaded images will be nowhere to be found.
Hopefully, they are all stored somewhere in a local folder that if I locate and copy over to my new computer, presto! Done and done.
Where are the uploaded artist images located exactly?
I've poked around and found what appears to be all my album images in Username/Appdata/Roaming/Emby-Server/programdata/metadata/library.