This gives a nice insight look into how they recorded their latest project. Pretty well done documentary by photographer Robert Lupuski. If you want to see how Jay-Z "writes" his verses skip forward to the 8 minute mark.
Edit: Universal blocked this video because of a few seconds of two songs from the new album with talking over it. That`s just insane. Post will stay like this until Kanye starts screaming as loud as he can until they finally stop the ban.