From Fedora Project Wiki
MPEG-1 patent status not more complicated than FAQ implies
Josh, you really need to stop pushing this one. You're starting to cross the line between information and trolling. Fedora Legal feels that there is still a high probability of patent risk in all MPEG technologies, including MPEG-1 and MPEG-2. This is a widely accepted fact in the IP field, the space is so heavily patented that only the passage of time will render MPEG safe. Tom Callaway, Fedora Legal