I realise this isn't going to be a priority or anything but thought it would be good if there was an option for custom artwork/covers on titles like discs from box sets that do not have their own instead of just reusing the covers of the box set.

A user can obviously do this now locally in their own collection but then they to remember not to contribute them to the service. Perhaps a custom option or even better something like backdrops or TV season posters where contributions can be added to the service for users to choose from for discs without their own covers could be added?