What the most easy way to move a MP4 movie to a Roamio

I have never moved anything to my Roamio from my PC, but I would like to know if there is a simple way to move a movie in MP4 1080p format to my Roamio from my Windows 7 64 bit computer.



Thanks for any help you people can give me (I want the easiest way as I am only going to do this a few times a year).