Earlier quoted context omitted.
Well... here's the dumb thing. The DASH-like manner (or, "rolling cipher" as they like to call it) has currently held up as being an effective protection measure. It comes up all the time when RIAA in particular sues YouTube stream-rippers. https://torrentfreak.com/deciphering-youtubes-rolling-cypher...
Very interesting. I feel like any type of digital storage or transmission format (PCM audio formats like CD Audio, packet switched networks like Internet Protocol, etc.) could also be described thusly, given that a typical human can't readily consume it. We use a tool that parses it using some algorithm, not a tool that avoids/breaks the algorithm. The error correction of a CD or the sequence number of a packet surel…
YouTube implemented the rolling cypher to satisfy music industry demands that the files were not permanently downloadable (and it appears they were able to provide abundant evidence that Google has communicated that to them in court, I don't think this is a controversial point).
That wasn't the point of the red book spec.
Intent matters significantly, legally.