^I had a similar problem with my movies folders.(Except that one folder level seems to be enough to avoid the error.) Before 2.6, I had always saved or copied new movie MKV files into the L:\Movies folder. Each movie would show up in MB's movie collection, without metadata of course. When convenient, I would run MCM, which would create a folder for each one, download metadata, images, etc. When I did this after the 2.6 upgrade, I got the same error as cybrsage above, and couldn't access any of my movies. Of course, I can work around it by creating a folder for each MKV file myself... but it would be nice to be given a heads up that something this basic was going to change.