Halo 3: how do I download my file share videos to my computer?

[doesnt matter]

Halo 3: I got some videos from my matches and i want to put them in my computer in order to upload them on youtube. I seen people on youtube with there halo 3 matches and videos of them i want to do the same. how do I download my file share videos to my computer?

 

[PS3 Winner]

just connect t with the port thing