Fedora doesn't come with some of the copyright grey area software, and I believe Ubuntu does, which is mostly audio/video related stuff like mp3 support and DVD stuff. This is all readily available for Fedora, and installs in a snap, it just doesn't come in the base package. I am unsure as to why Ubuntu can do it and Fedora chooses not to.
You've answered your own question there :) Fedora could do it, easily, but *chooses* instead not to and to stick to only including (officially) totally free and non-legally-dubious software.
Chris
