It would be nice if in Media Player if you could delete an entire directory and contents.
You can delete individual content (ie a watched film that was crap!) in a master folder. Is that what you mean or do you just mean the whole master folder of say any given number of movies?
I would think allowing deleting of complete folders would be a little dangerous!
I can imagine a scenario where the kids while playing with the remote select the wrong option and delete your whole media library. At least with the current implementation where you have to delete files individually it has to be worked at. However it would be nice to be allowed to delete an empty diretory.