I should have mentioned (here) that my "ideal" industry-standard system for distributing musical recordings would include a playback unit that would be required to play the recordings and which could play only that type of recording. It would record the identities of any recordings played on it, including serial numbers, which would be hidden in the recordings, which again would be encrypted. (This system would also allow the implementation of per-play fees.) This information would periodically be sent to a central data base and searched for evidence of pirating. Failure to do so would disable the unit. Furthermore, the components required to build a practical playback unit that could do an end-run around this system would not be available to the public. It would be possible to copy the recordings, such as for use on a music server (although the flash drives could just be plugged into "flash servers" with a lot of input ports), but any unauthorized copying would be seriously penalized. I'm fairly certain that this system would make piracy so unprofitable and risky that nobody would bother. So, there would be no excuse not to replace the current CD format with DSD-flash as the standard.