Proprietary media codecs

It looks like gstreamer-based audio (Rhythmbox) and video (Totem) players will be installed by default on all major Linux distros some time soon, but they won't play proprietary stuff like MP3 and DVD. If a company like Fluendo made it really easy (download then double-click) to install these codecs on all major distros then I would happily pay something for it. Hopefully I would be able to pay once for the right to download the codec for any distro, with free upates (for future versions of my distro) for 3 years.