On a sunny day (Sat, 02 Oct 2010 13:49:27 +0100) it happened Martin Brown
wrote in
:

External SCSI did it that way for a while. And in the early days when
USB stood for Unstable Serial Bus the more expensive Firewire gear had
the edge. The best advice for the OP is to select something that likes
roughly the same quality media as the DVD writer he already has. Might
also be worth considering a BlueRay unit to get twice the capacity.

Regards,
Martin Brown

You can get some more speed with multicore cables by using [twisted] differential pairs.
But once you do that, then you may as well send everything over one pair...
Ethernet...
Then you use the characteristic impedance of the cable, say transmission line.
The par port doed NOT use that, it is pure capacitive, in the old IBM PC
they even had a little capacitor from each par port pin to ground against RFI :-)