So you can choose the quality to watch it in?
I heard a ballpark figure of 1gig an hour?
That'd be about right. it will automatically choose based on connection, but you can force it in 720 if you're keen. that seems to bump it up to about 10Gb/hour tho. We find auto quality is perfectly acceptable - about the same as FTA TV. Most audio is only stereo tho, so not great for action movies IMO