From your slide set, page 21 says Amazon receives a master tape from the studio then converts it to a high-quality format on s3, then stores in 50 different for

From your slide set, page 21 says Amazon receives a master tape from the studio then converts it to a high-quality format on s3, then stores in 50 different formats and pushes those to the CDN. The more times someone stream a specific movie, the more these "fixed" costs are recovered. According to the chart you referenced, the CDN is still a part of the Amazon ecosystem. Amazon Cloudfront is 3 cents a Gigabyte (once you're over 1000tb)