[dsacco]

I would assume because the CDN customers make downstream promises to their own customers that the data will maintain losslessness. There are two potential reasons why that guarantee might be useful that I can think of:

- your product is explicitly lossless as a feature (like Tidal for streaming lossless music)

- you have to provide the files to others for reasons other than watching or listening (like editing), where integrity matters, and the use case/context requires a stream instead of just a file download