I am trying to configure my Windows Media Center (Windows 7 Ultimate). I selected folder with my movies and added it to the library, but when I went to the movies library, it says "There are no items in this library yet - Windows Media Center is searching for media files in the background...". I have all necessary codecs installed, Windows Media Player opens those movies correctly. When I right click on the file -> Open with -> Windows Media Center it also plays them without any problem. Any ideas why they don't appear in the libraries?
Edit: Movies are coded with divx and xvid codecs and they have ".avi" extension. Windows doesn't have problems playing them. I told Media Center where are the files. I even pointed it to look in a folder with only one .avi file and still it couldn't find anything there. I have given it quiet a lot of time, I'll leave it open for a few hours but I don't think it will make any difference. Especially that searching in the directory with only one file shouldn't take more than a few seconds. When I add a folder with a lot of movies, I get a dialog box "You can wait while media is added or select OK to continue using Windows Media Center.". At the end it says it added about 90 movies, but when I go to the libraries, it's still empty.