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02 June 2009 @ 07:00 pm
USPS As Bandwidth?  
I recently got Netflix. It's pretty cool, and since there is a warehouse in the city, we get DVD's really fast.

I was pondering one day how much "bandwidth" netflix is using via DVD's sent through the mail. Apparently they deliver about 2 million DVD's a day. Assuming the DVD is at least a full single sided disk (which seems to be a safe assumption), that's 4.7 GB per disk.

Using Google, that works out to: 870 Gbps. To use a useless, but somehow impressive measurement, that's the whole Library of Congress every minute and a half.

That's a pretty impressive amount of bandwidth. Which makes me wonder, could they in fact serve the same number of movies for the same price if they delivered them all over the internet?