> The RIAA lawyers never had to demonstrate that copying a DVD cratered the sales of their clients.
Did any of the defendants raise a fair use defense based on a transformative use that they were making of the downloaded copies? If not, you are in the domain of "unlike legal situations lead to unlike decisions" which is not exactly surprising.
IIRC format shifting was argued to be part of fair use. I would think that taking an audio CD and ripping it into MP3 would be transformative, but I don't think the law would agree.