If you can swing the DAC6, whats another 4-5k for a transport?
As far as standards go, in the pro world its' pretty much: unencrypted, with ability for external word clock sync. Hardwarewise, it can be over BNC, firewire, XLR, etc. Meitner's pro stuff does the above, I believe. For the consumer stuff - not sure. Probably some encryption but the ability is there to do it unencrypted, as the whole pro world must do.
-Ed
FWIW, I have a meitner-modified SCD-1 with DSD digital out, unencrypted, built for pro use. Not that I can swing a DAC6 or DCC2 anytime soon. Maybe if he did a straight 2-channel dac w/o preamp...