As a ballpark estimate 2 days worth of video in multiple formatats is around 24 blue ray disks @ 25 gigabytes per disk or 600 gigabytes per minute. (Note: most

As a ballpark estimate 2 days worth of video in multiple formatats is around 24 blue ray disks @ 25 gigabytes per disk or 600 gigabytes per minute. (Note: most of their video is not HD yet so this is a fairly high estimate.) That means a 2TB disk lasts around 3.3 minutes and they need around 150,000 disks per year. Which including redundancy is in the right ballpark for 900,000 disks. But, they could easily have 6+ disks per server. But you can easily handel that much bandwidth on 5% of those disks so aslong as your not trying to fill up one disk at a time it's really not an issue.