[Gloucs] FC4 multimedia

[Adam Hawkins]

What is it with multimedia in Fedora?
If I want to watch a video which is a .wmv I get this message and have 
to rename it as a .asf

/The filename "x.wmv" indicates that this file is of type "Microsoft WMV 
video". The contents of the file indicate that the file is of type 
"Microsoft ASF video". If you open this file, the file might present a 
security risk to your system.

Do not open the file unless you created the file yourself, or received 
the file from a trusted source. To open the file, rename the file to the 
correct extension for "Microsoft ASF video", then open the file 
normally. Alternatively, use the Open With menu to choose a specific 
application for the file.
/
Why is this?

Also, mp3 support:
mp3's play fine in Mplayer, but not in anything else. (eg. Rhythmbox)

I have w32codec-all-20050412-0.pm.0.i586.rpm installed.

Ta,
Adam