I know that this is a very old topic. But hey, i'm interessted in this feature, too. I am have all my files on a WHS (Windows Home Server) as DVD ISO Images. The MovieDB is located on my home pc. If i add a video file to the XMM entry there will be a link. But this link does not work in MCE. Therefore i tried to copy the video file inside the mediacenter folder. But after editing a single entry the folder will be recreated and the file is gone.
Therefore my suggestion to implement the mediacenter thing would be the following: 1) Each XMM entry have a checkbox to enable this item for mediacenter integration 2) If the checkbox is checked you can specify a folder in which the files "folder.jpg", "mymovies.xml" and "imdb.xml" are copied everytime i change the entry. This copy job schould only overwrite these three files and not more.
With this implementation it is possible to hold the video files on a server while having the db on a local machine. In addition this will not a destructive implementation like it is in the current version.
I think the above described method is a more flexible and comfortable way to implement the media browser plugin with XMM.
Maybe someone can comment this post if this will be included in future releases of XMM.