Thanks for your input JimH.
I'll try to read up more, but could not find concrete answer to what I want to use it for.
About question 4): I currently have a remote that can "Learn" other remotes by directing them towards each other, and pressing button to program. But for some reason, this does not work on mye computer remote, which is of brand IMON. I have no idea about what kind of IR implementations there are, but since this seems like a regular IR (Not RF), I was a bit supprised that it did not work.
So to ask a more generic question, has anyone tried to "copy" button from Media Center Remote on other learning IR remotes? And did it work, of course...