Cf. the situation at some (many?) Swedish public libraries, where the (company-centralized, DRM) ebook downloads every now and then have to be shut down, due to the libraries' quarterly quota being used up. (A quota that the libraries themselves are forced to set in order to prevent their budget to be eaten up by ebook downloads (the library pay the ebook provider 20 SEK per ebook download).)
Manchmal knnen die einfachsten Dinge zum Problem werden. Zum Beispiel auf einem iPad ein eBook zu lesen, welches mit dem Adobe DRM-System kopiergeschtzt ist. Dies Problem kann man aber lsen. Hier eine Anleitung dazu (tags: ebooks adobe drm ipad)