AC Milan goals in other formats

Hi, guys, I have a problem.
I want to download any goals (for AC MILAN of course...) from any game. But my system administrator has disable the download offiles in curtain formats like .wmv .avi .rm .mp3, etc.
But I realize, that is possible for me to download files in formats like .mp3_ .wmv- , etc. and after downloading all I have to do is to rename them in .mp3 .wmv .
That's OK, but you know, it's very hard to find any file in these renamed formats, actually I haven't found any at all...
So, is it possible to have a thread for people like me, who have to deal with the administrator's tyranny?