Next, the resolution is 720p, which is standard for a decent quality stream or download. Bluray might mean this is a re-encoding of a Blu-ray disc. The size is 700MB, which seems a bit small for Bluray quality. Typically, a 720p Blu-ray might take up more space, possibly up to a gigabyte. However, maybe it's compressed with a higher bitrate codec to fit into 700MB while maintaining acceptable quality.