This is essential if you want to have encryption/compression + range access at the same time. I've been using chunk sizes of 128 megabytes for my media archive

This is essential if you want to have encryption/compression + range access at the same time. I've been using chunk sizes of 128 megabytes for my media archive. This seems to be a reasonable tradeoff between range retrieval delay and per object overhead (e.g. s3 put/get cost).